Ready for a hardcore diet to get lean in a matter of days? This tuna fish diet is used by professional bodybuilders to prepare before the competition. It requires an iron willpower but guarantees 100% results.
3 Day Tuna Diet
Here is how it works:
- Normally this diet is followed for 3 days.
- Take in 6 equal tuna servings. Once each 2,5 - 3 hours.
- Drink as much water as possible. At least 3-4 liters. Water fills your stomach and helps you not to feel hungry. There is no limit. Drink as much as you can.
- Take at least twice a day some vitamins. This is crucial since you won’t get much vitamins from tuna during this diet.
- You will need at least 1 to 1,5 grams of protein per pound of your weight (aroung 3 gram per kilogram). Tuna’s marvelous as it contains 26 gram protein per 100 gram tuna. Here are two handy formulas to calculate your tuna serving size:
For kilogram calculation: (bodyweight * 3 * 100) / (6 * 26) = bodyweight * 300Â / 156 = 1 tuna serving (in gram)
For pound calculation: bodyweight * 100 / 156 or bodyweight * 150 / 156 = 1 tuna serving (in gram)
Don’t think it is an easy task, but the harder the task, the greater the payoff. For beginners I suggest to start the diet on friday evening after the work and keep it for two days. The reason is that you cannot control the regular food intake very well during a workday as you work normally 4 hours (or more) non stop and get only one break to eat. Moerover, two days tuna fish diet is not as hardcore as 3 or 4 days. I recommend this for all beginners. If you can keep this diet for two days without problems, wonderful, you can keep it for one or two days more.
Stay strong and be aware of forbidden foods. Your energy levels may fall in the first 1,5 days. You may feel very weak as never before. This is teh time of your spirit to stay as hard as iron and keep the diet! Your body will soon adapt and the strenght will come back.
Personally, I am doing this diet at the weekend every 2-3 weeks. It helps to burn the extra fat I may have gained during that period. It is a wonderful way to stay lean 365 days a year!


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April 27th, 2006 at 6:06 pm
Is it only for body building or any normal person can do it?
May 1st, 2006 at 8:11 am
Hi ramya, thanks for the question. Well, I don’t think that bodybuilders are so different from anybody else. If you lead a healthy lifestyle, but have 1-2 “cheat days” a week, this 3 days diet once every 3 weeks may help to burn all fat you might have gained in this period of time.
Btw. it’s not healthy to stay on this diet for a long period of time.
May 2nd, 2006 at 2:35 am
iam young and have been on this diet and lost 10 pounds should i stay on this diet because it the only thing that works for me?
May 2nd, 2006 at 4:42 am
Hi tina, congratulations for your weight loss!
Cheers!
This diet doesn’t supply enough vitamins and minerals for a healthy diet. Moreover I wouldn’t recommend staying too long on a diet that completely excludes carbs, especially when you are young.
If you really think this is the only diet that works for you, try incluiding veggies and fruits. They will provide you with some complex carbs and vitamins your body needs. Don’t do pure tuna diet for more than 5 days. It is proven that you can eat as much veggies and fruits as you can. They make you feel “full” and so you can stay better in control of what you eat.
Try it and let me know how you’re doing.
May 15th, 2006 at 11:57 am
I am a little overwieght and I wanted to know if I can try this diet. And for how long? Also I would like to know how much I would lose on this diet?
May 16th, 2006 at 6:04 am
same question as what susan asked, how much weight will be lost if the diet is done and how long
May 16th, 2006 at 7:32 am
Hi Susan, Tyrell. I can only tell you my own experience. I did this diet twice a month on a weekend (2-3 days in a row) to burn all the excess fat I might have gained in this period. I lost 1.5-2.5 pounds every weekend I did it. However, the weight you lose also depends on how much you exercise during this period as exercise makes you burn more fat.
Susan, in your case I would try this diet for 2 days every 2nd weekend. If you feel comfortable, do some more days but not for a long time as I said in the comments above. Moreover I would suggest you taking at least HALF of your daily calories from pure fruits and veggies EVERYDAY! Make salads (but without toppings ;)). Do you know how wonderful a cold fruit salad on a hot summer day tastes? mmmmmmh! You’ll love it!
I would also implement endurance exercises at least 3-5 times a week for 30-40 min.
I’ll be damned if this doesn’t help you to lose some pounds! Don’t hesitate to write me if you have any further questions! Good luck!
May 16th, 2006 at 11:05 am
I tried a similar diet before reading this. I had oatmeal for breakfast, tuna in the mid-afternoon 2 hours before I worked out, and a bit of soup in the evening.
Doing that alone, while still dring lots of soft drinks, I still lost 14 pounds in 8 days.
May 17th, 2006 at 3:28 am
Although I wouldn’t recommend eating 3 times a day and fill the rest of calorie needs with soft drinks, having smaller meal in the evening and complex carbs breakfast in the morning is also an excellent strategy.
Tuna is a good diet food and can be incorporated into your meal plan even without doing the pure tuna diet.
May 23rd, 2006 at 8:25 am
I have just started a diet, muesli for breakfast, tuna for lunch and chicken and veggies for dinner - it is day two - im going to vegas this weekend and i want to have fun at the pool… would you suggest the tuna diet to kick start my weight loss and then could i continue my previous diet. I have also been cycling 30min per day (i reallly need to lose weight!)
May 23rd, 2006 at 9:11 am
Rachel, of course you can! But don’t expect miracles. If you continue training for the next 4 days and do the tuna diet during this time you could lose 3-10 pounds. But it depends on your actual condition and many other factors.
Trying won’t hurt you. If there is something called the magic diet, it is definitely the tuna diet. If it doesn’t make you lose weight, no other (healthy) diet will.
One important thing: drink as much water during this time as you can! If you can do 3-4 liters a day, great! It is very important. It does wonders!
Extra tip:
(But NOT if you are planning to exercise during this period!!) It will make your skin look firmer as all water under the skin will be drained.
Then, if you really want to look slim and cut, stop drinking beverages/water last 14-16 hours before the pool.
It’s not healthy. Especially if it’s hot outside. So be VERY careful. You can start drinking again at the pool.
Hope that helped. Tell me later how it was.
May 25th, 2006 at 11:04 am
Hey sparky - just wanted to update you - i am on day two and i hate tuna but i weighed myself today and i have lost 2lbs!!!!!!! so because of that i feel like i can just suck it up and keep going! it has also been hard fighting the temptations but youre right it makes me feel so good just being strong!
thank you soo much - i will keep on trucking and follow your advice and get back to you when i finish my 4 days!!
cheers!
May 26th, 2006 at 5:19 am
Hey Rachel! Thanks for your feedback. Excellent news! I cant wait hearing from you soon after!
May 31st, 2006 at 7:06 am
Can you eat lite mayo on this diet
June 1st, 2006 at 9:33 am
hmm, I am not sure about this, Latrice. The idea is to eat lean, but if you find tuna absolutely horrible try adding Mustard (”de Dijon” is the best), not mayo. And eat it with a slice of whole grain black bread. It tastes good.
June 16th, 2006 at 12:24 pm
Hey Sparky!
its me again sorry i took so long to write back, but yes it did work i lost about 7lbs in 4 days, i didnt eat too badly in vegas and ended up with a 4lb loss. since then i have had birthdays and a wedding but now i have time to focus on me - it is seriously the first time i have lost weight since i came to the states, how can i continue to follow this day to day? and continue my weight loss?
June 19th, 2006 at 2:08 am
Hi Rachel!

I am so happy you wrote! Yeah, I know how hard it can be , especially when there’s so many trash food around. My friends and my parent do not eat healthy. And each time I visit them, well, I end up eating some junk.
And, you know, it’s hard to say my mom “no” if she has cooked something special just for me.
But it’s not that bad. As long as you keep yourself under control (more or less) and eat healthy when you’re back home, it’s all right.
For myself, I have found that
[jogging in the evening half an hour 4 days a week]
makes me lose weight even if I have 2-4 “special events” during that week.
The trick is not to eat anything 1,5 before and 1 hour after the jogging session. Then you eat something like an apple and a low-fat yoghurt and go to bed. The after-burn effect lasts practically the whole night.
Each time I re-start my jogging sessions, I usually feel and see the results after 4-5 days.
So, keep your eating habits healthy, don’t get depressed if you eat junk food sometimes during the week (The road to success is not a straight line) and do some endurance sports in the evening.
Hope it helped, Rachel
June 20th, 2006 at 8:23 am
what do you think about body for life?
June 25th, 2006 at 1:30 pm
I just started the diet today. So far I’ve only eaten two cans of tuna and 5 slices of wheat bread. I wasn’t planning on eating the bread, but I was so hungry I couldnt help it…does the fact that I ate bread matter? I’ll try not to next time. How many cans of tuna should I eat a day and how come the tuna diet can’t be for more than 5 days? I’d really appreciate it if you can help me..I need answers…
June 26th, 2006 at 7:08 am
hey dorothy - i did this diet and lost weight but what you have to do is avoid all carbs so that your body has to use your fat for fuel instead of carbs… so no bread, pasta, fruit etc… it will only work if you avoid carbs - when i found the tuna to be too much i ate grilled chicken instead so try that - this diet really sux but if you do it for just one day you will see results the next morning! so start again and stay away from carbs!
June 26th, 2006 at 9:54 am
Amen, Rachel. =) You’re right. I couldn’t say it better than you have.
Dorothy, the reason why you shouldn’t do this diet for a long time non-stop is that you don’t get enough vitamins, minerals and fiber during this time. It is also not advisable to be long time on an non-carbs diet (the atkins diet).
While it is true that you can lose a lot of weight on a carb-free diet, it will have negative side-effects on your health. Do not lose weight on cost of your health! It’s like so many female friends I have who started smoking just to lose few pounds. But at the end you never win with this strategy!
Do this diet few days a week. 2-3 times a month if you want to. But don’t overdo it. Consistence and patience is the only thing you need to succeed. As Kafka said:
“There are two principal human sins from which all others can be derived: impatience and laziness. Because of impatience they were driven out of Paradise, because of laziness they do not return. Or perhaps there is only one principal sin: impatience. Because of impatience they were driven out, because of impatience they do not return.”
Think about it!
June 26th, 2006 at 10:32 am
Thank you both( Rachel and Sparky ) for the advice. I really appreciate it, it’s nice to know that I can get help by coming here. I’m 16 and I’m really trying to lose weight. I’ve lost weight before, but sadly gained it all back and more. I’ve heard about this diet through a friend…and I decided to try it even though I know it’s gonna be really hard. I’m SO hungry it’s not even funny. I have the urge to eat other things. I’d like to know, how important excerise is with this diet? I feel so weak that I dont even want to think about it. Im SOOO hungry, but I’m going to try this diet out for 1 or 2 more days…after that would it be okay if I ate more? What if I gain everything back? Thanks a lot for your help and I’ll keep yall posted…thanks again
June 26th, 2006 at 10:35 am
Thank you both( Rachel and Sparky ) for the advice. I really appreciate it, it’s nice to know that I can get help by coming here. I’m 16 and I’m really trying to lose weight. I’ve lost weight before, but sadly gained it all back and more. I’ve heard about this diet through a friend…and I decided to try it even though I know it’s gonna be really hard. I’m SO hungry it’s not even funny. I have the urge to eat other things. I’d like to know, how important excerise is with this diet? I feel so weak that I dont even want to think about it. Im SOOO hungry, but I’m going to try this diet out for 1 or 2 more days…after that would it be okay if I ate more? What if I gain everything back? Thanks a lot for your help and I’ll keep yall posted…thanks again
P.S. I’ve had problems with laxatives in the past, but have stopped taking them. I was taking them like it was water..even though i hated taking them it did help me lose weight. Sometimes I’m tempted to start taking them again..what if I was to eat some breadsticks or something and then continue this diet tommorrow? You don’t know how hungry I am!!
June 26th, 2006 at 1:42 pm
Dorothy,
the most important thing during ANY kind of diet is never, _never_ to feel hungry, if you want to keep the weight off for a long time.
Your body is highly adaptive and if it notices that you don’t get enough food, it will save “a chunk” as a reserve next time you eat normally again. In other words’ you will regain weight.
So in your case, try to eat more so you keep your body constantly somewhere between being full and hungry. Balance is the key. You won’t overeat. Do more sports, if necessary. But NEVER let yourself feel hungry. I can’t stress that enough.
What I found for me quite effective when I’m hungry is eating fruits like green apples: You get extra shot of vitamins, fiber, feel more full and can eat as much of green apples as you wish because they don’t count
I am not a big fan of unnatural ways to lose weight as they always tend to have negative consequences on your health or do not give long-lasting results. So guess what I think about laxatives. =)
Laxatives cancel out all the benefits of fiber. Do it for a longer period of time and you can kiss your digestive system good-bye.
Don’t.
June 27th, 2006 at 9:44 am
I was thinking about soing this diet but, do you smell like fish? I know it sounds weird but, It’s a real question.
June 27th, 2006 at 9:54 am
Also can you eat more tuna and still lose weight? I weight 143lbs and was wondering how many cans of tuna I should eat a day? I would like to be 130 asap so Can I saty on the diet for a week or 2 p.s I do like tuna
June 27th, 2006 at 12:17 pm
Just wondering will if it hurt me if I’m still hungry can I just eat more tuna?
June 28th, 2006 at 1:31 am
Susan, as I already said several times before, don’t do tuna-only diet for a long time. Add fruits and veggies and maybe whole wheat bread if you want to stay on this diet for more than 5 days.
There are different kinds of tuna on the market. For example, I LOVE tuna that I buy at Lidl(a small store where i live), but I also tried tuna from other company that tasted absolutely awful!
Try different offers and see what tastes better for you. Add spices. For example tuna with mustard tastes much better. But only if you like mustard. >) Find out what works best for you.
And no, you don’t smell like fish. I can prove that :D… Well… unless you don’t brush your teeth once in a while
Clint, of course you can eat more! The trick is to find a balance where you don’t feel neither hungry or full. Your body will be more ready burning the fat if its not in “survival mode”.
Because if it notices that you don’t get enough food in. It will fight for every drop of fat. It will be harder to get rid of it and once you’re back to normal diet, you will regain that weight very fast. Balance is the key.
Hope that helped folks
June 28th, 2006 at 8:45 am
can you have any cofee or hot tea while on this diet it’s only my forst day but, no hot beverages seems the hardest part
June 28th, 2006 at 8:29 pm
Hi Susan,
I drink tea several times a day. If you don’t use suggar, it’s like water. The same goes for coffee. In fact (green/black) tea and coffee speed up your metabolism, which makes it faster to lose your weight.
June 29th, 2006 at 5:40 am
Thanks,
Day two and no problems so far.
July 15th, 2006 at 11:10 am
Hey guys the tuna diet does wonders, I followed it once for more than a month and used to lose a pound every other day if not everyday. I’m trying to go on that diet again but can’t seem to stick to it, though I need it badly now.
(Sparky I don’t care about healthy I just want those pounds to fall off!)
Anyway I am starting tommorow and I am going to be working out for an hour. I will also add skimmed yogurt to my diet because i heard it aids in maintaining lean muscle and speeds up fat loss especially abdominal area. (Where all the fat in my body is stored!)
Good luck dieters and i’ll pop in every other day and tell you how I am doing.
July 21st, 2006 at 9:44 am
Hi Everybody! I’m so glad that Everybody is talking wonders about the Tuna Diet. I would like some advice though I want to start this diet but before I do it I want to know if that diet target all body fat? My problem is just my love handles I need to get rid off them!! I’m skinny but I have a horrible belly !! I do exercise and drink a lot of water but it doesn’t go away , and I watch my diet too ! Help me with this one .. thanks and good luck to everybody
August 13th, 2006 at 4:17 pm
Hey what about eating tuna and taking like Centrum vitamin pills?
You get your iron, vitamins, minerals…. your good to go
I used to use cup of noodles like 40 cent kind, water, and centrum
August 16th, 2006 at 8:55 pm
hey, i was jsut woundering after about 5 days of this diet and i start adding like fruit and veggies and stuff…how long should i do that for?and once i loose the wait how can i keep it off?like whats a healthy way of me eating…ive never dieted before or even tried jsut eating healthy…so what can i do t keep that wait off after i lose it and what excursises should i do? ab and running?
thanks
September 19th, 2006 at 2:23 am
If you are on the tuna diet long enough, does it affect the way you smell “down there”? Honestly. I know that your diet does affect the smell and taste, but is it fishy?
September 22nd, 2006 at 9:54 am
I did this diet and I drank alot of water…. i found that if you drink about 3litres of water a day “down there” does not smell anymore! no matter what you eat.. drink alot of water and it has no smell at all!
October 3rd, 2006 at 5:50 pm
Hey when people say they lose 2-3 lbs. is that fat or including water?
and by looks how much is 1 lbs. of fat , I have always been curious of that.
October 3rd, 2006 at 11:39 pm
Hi guys, sorry for not posting soo long. I have been quite busy lately.
Anyway. Mike, 3lbs are +/- 1 kg. You also lose excess water in the first week by drinking 3+ liter/day. Afterwards, if you dont starve yourself (a common error which leads to failure) you will be losing plain fat.
Again, I advise you to add LOTS OF fruits and veggies if you are planning to go for more than 5 days. It will keep your hunger in check and give all the vitamins and minerals you need.
Cheers and good luck!!!
October 6th, 2006 at 6:47 am
Hey, I was wondering can we add vegetables to the tuna or will it change the diet? I used to LOVE tuna but only after 2 days on the diet that love quickly went away. It started to smell really fishy I had never noticed it to smell that much. Is it just part of the diet? I’m trying to add the vegetables to it and a little mustard like stated above.
October 23rd, 2006 at 10:08 am
hi Im 24 years old and i am very over weight. I want to know if i do this diet for 5 days, 2 times a month. what things would you say to eat when your not doing the tuna thing?
October 26th, 2006 at 12:11 am
hi! Im 21 and I have eaten a lot so i’ve gained a lot in few days and im very sad… I will try this diet for rapid weight loss. Do I have to eat so much tuna??? each serving must be about 100 g and that’s a lot! I don’t like tuna… I hate it but I know it’s great for weight loss. Can I eat 2 cans a day? I am 120 pounds
November 3rd, 2006 at 7:49 pm
your gonna die if you eat 2 cans a day, eat way more than that, it didnt work as good as i thought it would, next time ill exercise alot more, defintly a little harder than it looks
November 28th, 2006 at 9:07 am
WHAT DOES THIS MEAN “Take in 6 equal tuna servings. Once each 2,5 - 3 hours” ? Is is 2 oz every 3-5 hours???
November 28th, 2006 at 9:10 am
I weigh 140 pounds. How much tuna do I consume? Just trying to keep it simple.
November 28th, 2006 at 9:39 am
kim: with your weight you should take between 140 and 210 grams of tuna per day. That’s 25-35 grams per one serving each 2,5-3 hours.
As 1oz is more or less 28gram you can keep it simple and just take 1oz per serving.
Hope that helped!
November 29th, 2006 at 3:28 am
This means Kim will need to eat 1oz of tuna everyn 2.5hrs. It will take her all day to just eat one 6oz can of tuna. seems crazy???!!!
November 29th, 2006 at 9:20 am
Well then
welcome to the crazy club of tuna dieters! hehehe
It’s not that crazy… believe me
December 5th, 2006 at 11:53 pm
I just started the tuna and water diet,I love tuna and I buy it fresh(not canned),marinate it with ginger,garlic,red chillis,mixed herbs,lemon juice, spices and grill it.Its delicous.I hope the spices are not counted as extra carbs.
I will be posting my weight loss here after I finish 4 days on this diet.
December 5th, 2006 at 11:55 pm
Thanks for the comment jaishree! I’m looking forward to your next post with results!
December 13th, 2006 at 7:06 pm
hey I was just wondering how much would an e/c stack help with this diet? and once off the diet how much is expexted to be gained back?
December 31st, 2006 at 6:45 pm
Hi I actually did something similar to this using the “fat fast” this past March.It really works well and if done correctly as stated you can continue to lose weight.It was made also for people who are “metabolically resistant” to weight loss.And during the “Atkins” low carb diet faze,many people started to make minor adjustments.In actuality,if you use fish or any lean meats and cut out all carbs,you will lose weight.I lost 20 pounds in about 2 weeks of doing it.The only thing I would add is no sugar or starch at all.Only decaf coffee,tea,or soda.Also, if you add certain vitamins like L-canitine,CO-Q 10,chromium,etc. will boost it all along.I am starting again on Jan. 1st as a way to lose again.Be careful though,as with any diet if you do not alter your eating habits permanently, you willgain all you have lost plus more back.This is like a life long commitment to change your ways of eating.
January 2nd, 2007 at 2:29 pm
I saw that someone mentioned taking vitamins twice a day. Is this okay even if your bottle says one a day?
January 3rd, 2007 at 8:53 pm
I was just wondering like if you’re drinking coffee and tea during this diet, would it hurt to use splenda since it has no calories?
January 10th, 2007 at 2:08 pm
I plan on starting the tuna & water diet on Friday…I’m 139. How much tuna should I consume every 2 and half to 3 hours?
January 10th, 2007 at 2:13 pm
My bad I didn’t see Kim’s ? in November…I’ll go w/the 1oz per serving rule too
January 11th, 2007 at 1:04 am
Good luck Tameaka!
January 14th, 2007 at 6:04 pm
I am starting this diet tomorrow Monday, it’s easier for me during the week, wish me good luck, I weight 180.
January 15th, 2007 at 9:38 am
Good luck Luisa and please post your results!
Thanks!
January 16th, 2007 at 9:48 pm
hey I want to try this diet for two weeks but add in veggie how much wieght does the average person lose doing this.
January 18th, 2007 at 7:01 am
Can’t believe how good this diet is, I did it for three days, and I have lost 10 lbs! Yes, it was little hard but looking at the result it really worth it! Just want to know how to keep my weight until next time I start this diet again, I am planning to start it next week, is that possible?
January 25th, 2007 at 3:50 am
i lost 9.5 pounds stayed strictly on this diet 3 days. i am wondering what to eat this day so the first bite i dont gain 3 pounds back????
January 25th, 2007 at 8:44 am
Luisa, Linda congratulations. This just proves the effectiveness of this diet.
However do not overdo it. 3 days every 2 weeks is usually enough.
In between just follow healthy eating habits (6 small meals, no food before sleep, complex carbs, lots of veggies and fruits, less of processed foods, dressings and sauces). No tricks, just common sense.
February 27th, 2007 at 1:22 pm
Well…I just started this diet today…it’s definitely hard and I’m definitely feeling tired and hungry…hopefully i’ll lose what i need to lose by friday morning…
March 9th, 2007 at 7:41 pm
Hi, I’m trying to lose weight for a wedding & keep it off!I got the shock of my life last night that the designer dress I have bought for my cousins wedding, DOES NOT ZIPPP UP! I need to lose at least 2 siZes for the dress to fit AGAIN and the lady at the designer shop told me, try the Tuna diet, you’ll drop kilos in no time!!! There’s 3 weeks to the wedding, and I need to drop lots of kilos! I will combine it with exercise, but want to know, is it possible to do this diet ongoing for 3 weeks? I have a very strong will power, I used to be a huge obese teenager, 130kgs - lost half my weight in a year, but now during the past few months of slacking off and not execising I’ve gained about 20 kilos back!
it’s killing me, but I’m gonna try this Tuna and water diet for sure. I just don’t understand how to calculate SERVING size in Grams, I get a little confused. I weigh 85k - the way I worked it out, it came to 163.4grams per serving - is this right? does that mean I have to eat 163.4g of tuna 6times per day?
March 29th, 2007 at 10:54 pm
Hi. I’ve read all the posts and there is one big controversion I have. YOu avice to dring as much water as possible, 3-4 litres a day, just drink, drink and drink. Normally it is advised to drink around 1,5 - 2 liters of any liquid per day, which does not include some pure water only, but also soups, yogurts and so on. Why is drinking so important then in the tuna diet? I can imagine all your readers when very hungry will drink much water at once. Don’t You possibly think it may be harmful? Too much water at once surely streaches and enlarges the stomach, which implements being more and more hungry day after day. So my suggestion is, if we stick to the rule of 3-4 litres water a day, to drink not more than a regular glass of water at once and let the water be soaked from the stomach into the body before we drink another glass. We should point out that 3-4 litres of water make 12 - 16 glasses of water a day. However I’d suggest to drink them 16, rather than drinking much at once as far as I am concerned that diets not only make us lose pounds but also discrease our serving portion sizes thanks to letting our stomachs get shrank.
March 30th, 2007 at 6:13 am
Hello Ania,
There’s a slight misunderstanding. We meant: Drink as much water during the day as you can. As much as you’re comfortable with. There’s no need to drink all that water at once!!
Additionally, I wouldn’t suggest drinking any liquids during or right after you ate something. Do it 10-15 minutes later. Several studies show that too many liquids while your stomach processes the food causes its malfunction (stomach acid is dissolved and isn’t as effective) and can lead to digestion problems later on.
Hope that helps! Thanks for your comment!
April 11th, 2007 at 6:59 am
I plan on trying this soon, the idea behind this seems to be the same as the Atkins diet during the induction phase (no carbs - high protein). Except of course for the Fat part of which Tuna has very little of (as long as it isn’t packed in oil).
One worry though - MERCURY! Should I be worried? I mean you hear now that you should limit your tuna intact because of mercury contamination. I’m wondering if high doses of it will screw me up…
Thoughts?
April 15th, 2007 at 10:14 pm
Hey, I ‘ve been reading about this tuna diet and I’m thinking about trying it, but there are a few things I’d like to know.
I’m 130 pounds (normally this doesn’t seem like a lot, but I’m kind of short), so I was wondering how much tuna should I eat per serving?
Other things I was wondering about were, how many servings should I eat per day, how much water (in oz preferably) should I drink, and what is the best frequency to exercise if I were on this diet for five days?
April 16th, 2007 at 7:22 am
Megan,
with your weight it would be 2,5 oz per serving, 6 servings a day. In total 15oz tuna per day.
I was doing 20-30 min jogging everyday while on this diet. Worked fine for me.
Water: 6-8 cups. Just do one cup 5 min after each tuna serving and you’ll be fine.
April 17th, 2007 at 9:25 am
I am willing to start the diet but I do not really understand the serving formula could someone help me if I weigh 55 kilos what should the size of my serving be?
April 26th, 2007 at 8:50 am
Hi, im a male and im 22 and weight 225, yeah a lot overweight … if i do this deit for 5 days, how much do I eat ever 2.5 hours????? and how much weight do you think i will lose? what kind of exercises should i do while im on in? please let me know because i will start asap and then post my results!
June 5th, 2007 at 4:21 pm
hi! can i have tuna in can. ifever, what do you recommend? tuna flakes in oil or in brine or in water (all in can)? Can i also drink cold green tea or white tea? Thanks a lot!
June 6th, 2007 at 6:19 am
Hey Zhayuri. I personally take tuna in oil (without the oli). It fills a bit more than tuna in water. It’s up to you.
I am also a tea drinker and I can confirm that it’s absolutely okay to take tea as much as you want Don’t put too mch sugar in, though. I drink mine without any sugar. So it doesn’t disturn tea flavour. Good luck!!
July 16th, 2007 at 8:20 pm
I was wondering with this diet, can we have cereal in the morning for breakfast. Healthy ones like special k, honey bunch of oates?
July 25th, 2007 at 4:51 am
so did everyone have quite good results on this program. Im thinking of starting it. I usually have 2 cans of tuna now, but my biggest problem is evening. I just get so hungry for all the wrong types of foods.
August 1st, 2007 at 4:20 am
i have been reading on this diet. i can do this. i just wanted to know how many cans a day do i need to eat per day.weigh 173 and can you add lowfat mayo or just plain.
August 2nd, 2007 at 3:45 am
Sonny, I would increase the serving size. NEVER feel hungry. That’s the biggest mistake.
Sandra, 30 gram per serving. 6 servings per day. You’d be better off without the mayo. Otherwise try this: very little mayo and small cut onion pieces, all mixed together and served cold. Take it with a slice of black bread. I love it!
Cheers!
August 7th, 2007 at 3:56 pm
Hi Sparky i was wondering if you could help please. I know everyone says that starving yourself is no good but to be honest with you thats the only way i have really lost any weight, however as always i put it all back on plus some. I am looking for some advice with regards to this tuna and water diet. Do you eat the cans of tuna in sunflower oil or brine?? thats a good question eh. Plus i am a male aged 24 and i currently weigh 280lbs, very bad i know. I am going on holiday in 6 weeks and i want to lose a huge amount of weight. when i starve myself i normally lose about a 14lbs in my first week mainly of water. I plan to drink 4 litres of water per day and eat 2 tins of tuna per day and thats all. Please dont tell me this is bad cos i already know that. I will also eat some apples so that i dont feel hungry which would make me go into starvation mode. I would like to lose around 42lbs for my holiday. would this be possible mate. I know i will probaly end up putting it all back on again but as long as i lose some weight for going away i dont mind, ill eat sensibly when i coime back home. so how much weight could i lose in 6 weeks sparky. I know water is very good to help you lose weight. I am very heavy so i think it could be possible to lose 3 or 4 stones in 6 weeks, what do you reckon. I know this is very stupid mate but i have no time to be sensible on a diet. Not to mention i will also excercise, walk and swim in those 6 weeks. Please reply asap. Cheers, Chris
August 7th, 2007 at 9:12 pm
Hi Chris, first of all, im eating tuna in olive oil. Without the oil, of course.
42lbs in 6 weeks is not impossible. Although I don’t recommend this diet for a long time, in your case, I’d do the following:
Apart of the tuna and LOTS of water, add veggies to your diet. Their caloric contribuion is almost non-existent, but the fiber will keep you full and won’t allow your body to go into starvation mode.
If your body notices starvation it will fight back to protect every drop of fat -the natural energy reserve- and cut on other things like your muscles -the natural energy spenders-
In other words: after 2 weeks you will notice a drastic decline in fat loss. Dropping any more pounds will look impossible. So don’t go into the starvation fight with your body as you can’t win in.
What you need to do is to trick it: Whenever you feel hungry, eat some apples or veggies (without dressing :P). They have a very minimum of calories, but will prevent your body from fighting back.
Doesn’t matter if you have to eat 3-6-9 pounds of veggies a day to NOT to feel hungry. But it’s the best way to go.
Hope that helps! Tell me your results afterwards. Cheers!
August 8th, 2007 at 8:39 am
Thanks sparky but one thing i dont understand is this. The whole point of eating the tuna is because it is fat free and has no carbohydrates which i believe is worse than fat. Fruit and veg is also fat free but they contain carbohydrates, in particular apples. would this not slow down the process at all. I love drinking diet coke etc is this ok to drink as there are no calories or carbohydrates and make me feel bloated. I want to lose weight rapidly but dont want to starve myself like that and throw it all away by eating something daft like an apple or something. I used to think that people told you that starvation mode was bad just becuase it was. I understand that your metabolism slows down. what about sugar free gum?? why do people on these diets prefer caffeine free diet coke or tea or coffee. what fruits or veg have the least carbohydrates. Today i have drank black tea and diet coke and 6 glasses of water. I have also had one tin of tuna in Brine. I drained the tuuna and found it to be very dry, that dry i had to have a drink inbetween forkfuls. Any tips on the tuna?? I am on a mission to lose 56lbs, i go away on holiday on 17th september which is just less than 6 weeks. what do you think, if i stick to it hardcore do you reckon i could lose 4 stones 56lbs. I really hope i can. I know its a bit of a mission but i think big guys like me will lose lots in first week or 2. weighing 20st how much weight do you think i will lose in my first week. Remember all i will eat is 2 small tins of tuna per day and i will eat apples only if hungry.
August 8th, 2007 at 10:17 am
Welcome back,
I also drink diet coke(0 calories), green tea, coffe and anything low-calorie that provides an extra shot of caffeine. Caffeine makes your heart beat faster, which uses more calories. Therefore you may lose 2-5% more fat during th same period of time (rough estimation).
Yes fruits and veggies have some carbs, COMPLEX carbs because of the fiber. And therefore the insulin levels in your body are altered very little. Ipso facto, this calories won’t be stored as fat.
Just be careful with fruits as many of them have lots of simple carbs (plain sugar) like yellow bananas. Green apples are OK. And so are all veggies.
August 10th, 2007 at 6:31 am
hi started the tune diet today, had 2 cans so far and loads of water, just wondering, once u lose all the weight, doe sdit come back on easiy?? what can i do to keep it off??
August 10th, 2007 at 9:08 am
http://www.bodytweaking.com/2007/08/03/be-a-frog-in-fitness/
This post explains it quite well. For quality loss you need to gradualy increase the intensity of your workout and gradually cut the calories. Let your body adjust over time so it doesn’t revolt. This is the only way known to me that works ALWAYS to keep the weight off for a lifetime.
August 15th, 2007 at 7:31 am
i am so bad with math, could you help me out with my serving sizes? i am 195 lbs
September 10th, 2007 at 4:18 pm
I need to lose weight. what if you use prune juice and the water and the tuna for 3 weeks? And vitamins, of course. Will you look better? I’m fat.
September 29th, 2007 at 10:27 am
hi sparky im 51 years old weigh 223 i need to know how many cans of tuna i need to eat a day to lose weight. all thougha kil metere i dont understand to can u just give it to me in plan english simple!! Thank You
September 30th, 2007 at 10:20 am
HI, IM TRYING THIS DIET, AND IT HAS BEEN VERY TOUGH TRYING TO GO COLD TURKEY, SO I HAVE BEEN KINDA OF CHEATING, I SQUIRT A LITTLE MAYO AND ADD PICKLES TO TRY TO GET ME GOING…SO DO YOU THINK THIS WILL INTERFERE WITH MY WEIGHT LOSS GOAL, AND SHOULD I TRY ADDING VEGGIES? AND WILL VEGGIES HALT THE CHANCES OF ME LOSING MORE WEIGHT IF I DIDNT ADD THEM(VEGGIES) TO THIS DIET>? AND CAN I DRINK VITAMIN WATER IT HAS 10 GRAMS OF SUGAR…..?
September 30th, 2007 at 10:23 am
ALSO I WEIGH 170, HOW MANY OUNCES SHOULD I EAT?
October 5th, 2007 at 11:48 am
Hi yall! So, I started this tuna and water diet yesterday, and to be quite honest, I LOVE IT! If you drink a lot of water, you will not feel hungry, it will fill you up. I want to loose weight for my
God daughters baptismal. What I have been doing is working out for an hour every day. But with the tuna diet, in just one day I lost 2.5 lbs! This is very exciting for me! I can’t wait to weigh myself tomorrow morning!
October 8th, 2007 at 6:57 am
Hi…I really need to lose weight badly. I want to start off with losing 20- 25lbs. Would this be a good diet to lose that much weight on? And when I’m not on the diet what should I eat because I dont want to lose and then gain it back.
October 10th, 2007 at 7:51 am
Hi I am so glad to see this diet because, I always thought tuna alone could help me lose weight. Most people told me it was unhealthy to do. But 3 days is the trick…yay! But do I use tuna in water or oil. I’m thinking I need the fat from the oil or no? Also is there a such thing as to much exercise. I cardio daily for at leat 60 minutes (sometimes more cause I walk not run) and I weight train 3 days a week. Will this hault my fatlost?
October 10th, 2007 at 8:43 am
Oh and I’m 196lbs I think I need to eat a pack per meal which is 3oz is this right. Hope so cause I started just now.
October 10th, 2007 at 7:34 pm
3 weeks ago i was 261 pounds today i am 231. i lost this weight on the lemon diet. now i wnat to start the tuna diet for 3 weeks for the first five days im eating only the tuna but for the rest of the time i will have fruits and veges. but im not sure how much i should have of either the fruits or the tuna. i also plan to do i work out program at the same time
October 29th, 2007 at 8:29 am
Will this diet help your body fat percentage go down?
November 5th, 2007 at 3:50 pm
hi i am starting this plan at the end of this week i hope i have the will power to keep on it because i need to lose some weight. I am 21 years old I’m 6ft 1in and i weigh approximately 190lbs. I want to get in shape so next year when i go to the beach i’m not embarrassed to go. I’m glad that there is this message board to give advice and hope to all of us out there who need this information. I will keep updating this board with my progress and i wish luck to anyone else who is trying this diet too.
November 15th, 2007 at 10:45 am
im doing that and it really did a lot difference from any other diet and its good!!! the result is the best
November 15th, 2007 at 11:02 am
yeah i have not started it yet i am going to wait until after thanksgiving then i will try it for about a week
February 8th, 2008 at 12:15 pm
hi, today i start the tuna diet, for my wedding that is on febuary 25 and i weigth 220lbs. how much do you think i can lose. ps. i ate quaker in the morning and tuna as luch and then orage.is that ok or i only have to eat tuna and apple and water. because i dont like to much water.what else can i drink and how much do you think i can lose with this diet. please help
February 8th, 2008 at 12:18 pm
please help me or i gonna go crazy. what should i do to maintain the weight off.
February 24th, 2008 at 4:57 pm
Hi,
I really would like to lose about 25 pounds and look good in shorts and a swim suit by the summer. After being on the diet for 3 to 5 days can fruit and veggies be added along with having oatmel or a boiled egg for breakfast?
February 24th, 2008 at 4:59 pm
I also have thyroid problems, will that effect my progress?
February 25th, 2008 at 10:23 am
Tyson makes a can of chicken chunks with pretty much the exact nutrition facts, but with more protein..If I do the diet with the chicken, will it be the same as the tuna diet…If so, could I eat both of them? You also say fruit doesnt hurt and eat as much as you want, what about veggies?..Can I eat any with this diet?
March 1st, 2008 at 9:52 am
I am 22 years old, and while my fiancee moved out of state I stayed with my mom until he got us our place. I didn’t like most of what she ate, so I pretty much LIVED off tuna sandwiches and water for 8 months. It’s very hard for me to lost weight, and without even knowing about this ‘tuna diet’ or exercising, or trying at ALL, I lost 25 lbs!!! Slowly people were telling me how skinny I was and I had no idea why I was losing weight. I know the diet says you aren’t supposed to eat bread because it counteracts what the tuna is doing… So why did I lose that much weight eating tuna sandwiches? Since I moved back in with my fiance I haven’t been eating those and have gained it ALL back!!! (I just sent him to the store to get more tuna!)
March 5th, 2008 at 4:07 am
OK, here goes. I attempted this diet yesterday. However I feel super starved in the morning before the gym, so I have a cup of nonfat plain yogurt. Following the day with Tuna, while on the go Low carb Protien Bars (2) then Tuna and another Cup of Yogurt in eveing. Today I feel super tired. lighter over all. I plan to eat more tuna and only one bar a day. plus one cup only of yogurt. i do not like the idea of straving. This way I feel light but not straved throught the day. What do you think of this plan. Am I wasting my time??
March 5th, 2008 at 4:14 am
Probably because you changed your diet and your caloires were in the very low range over all.It would og happened if you ate only ice cream too. After all eatting low cal will keep you losing weight,till your body says enough and starts to store fat to protect you. You accidentaly become a YoYo dieter,too low calories followed by eatting normal or more then normal equals fat gain and fast. Your body clearly went into strave mode. You can’t live off only tuna sandwichs. There is not enough vitamins etc…Try to eat balanced. You will get back on track. I lose 15 lbs in 1 month or so from cutting out sugar, excerising like mad. I gained it all back lus some and have found it difficult too lose. The body is not always our friend. More like a parent.
March 29th, 2008 at 12:41 pm
I am going to do this tuna diet for 15 days straight but I am also going to use a supplement shake as well that I bought from Arbonne called Figure 8 so I can make sure I get my vitamins! If I feel I have to have a snack I plan to eat raw fruit!
I will let you all know how it works for me I am starting it April 1st & ending April 15th!
April 5th, 2008 at 7:57 am
I am 5′3 and 155 pounds. I really want to lose weight, thats why am going to start this diet on monday 7th. Am going to do it for a week. I wish i lose 10 pounds at least! i dont know if i could do exercise because i guess i will feel tired and with little energy…well i will type my final results on april 14.. wish me luck!
April 9th, 2008 at 1:09 pm
ok i weight about 180ok i want to lose 25 30 pounds ok but i really dont like to exercise that much i sometimes work out whenim like in a really good mood so i want to lose weight by june lose 30 pounds if i do this diet tuna and water is it possible for me to lose that im in a big deal about this i really need to lose this im at wits ends on this
April 30th, 2008 at 5:41 pm
hi if i start on may 1st and follow it for the whole month is that recommended because this is the only diet that has ever worked for me i really want to get lean fast and keep off the weight i am 225 and 6ft. any help or advise would be appreciated thank you
May 5th, 2008 at 3:28 am
Guys, read the warnings above! When they say do not follow this diet for more than 5 days max they mean it! This is not a diet you can, or should, consider for long term use. This diet originally came from bodybuilders in the 50’s as a way to deplete their bodies of sodium to make their skin look tighter and more vascular. Yes, you will loose some fat but most of the weight you loose will be water. This can be very dangerous, especially in the summer when temps are high.
If you want to do this for 2 days before a photo shoot then fine, do it. But if you need to loose 15 pounds in 2 weeks to look good at the pool you’re out of luck. You should have started 7 weeks ago to meet your goal.
Once again. Listen to the advice of the publisher and only follow this diet for 2-3 days.
May 21st, 2008 at 1:02 am
Hey I have been doing the Dave Draper tuna and water diet for 2 days now 1.5 grams of protein for every pound of body weight I have to eat 9 cans every day but it is working magnificently I have not weighed myself but am already seeing definition and such this works great I am doing this for 9 days it really helps to add metamusil though. =P
May 24th, 2008 at 1:58 pm
I Think Sparky Died
June 9th, 2008 at 12:00 pm
Lol, Tornado. I have laughed my a** off on this one! =) I’m alive as never before. Good diet combined with excellent anabolic/aerobic exercises do the trick. Yo guys ever tried spinning? Yo should! It’s so fun and addicting! And it burns those michelins in no-time. I should write a post about it sometime as soon as I get few minutes free…
June 12th, 2008 at 8:29 am
i have been eating carton eggs that have 30 calories per serving ( am eating 2-3 servings) with fat free cottage cheese 1 serving for breakfast Both have very little carbs . Then eating strictly tuna after for the rest of the meals. IS the breakfast alright?
June 26th, 2008 at 6:03 pm
Can’t figure out the formula.
How many cans of tuna a day??