Grapefruit Diet

The Grapefruit Diet is a weight loss diet built solely around the humble grapefruit.

The idea that a single item of food has miraculous weight loss properties seems a farce. The grapefruit is a marvelous fruit – a natural simple carbohydrate high in fiber and vitamin C. But to use it as the sole foundation of a weight loss program is unwise. However recent research has discovered that the grapefruit has more to it than meets the eye.

A lot of the grapefruit diet plans that have been circulating are very low calorie diet plans (VLCD’s) with a grapefruit thrown in. VLCD’s are not a good weight loss solution for many people. Most versions of the Grapefruit diet are identical to the Mayo Clinic Diet.

Grapefruit Diet – Meal Plan

Below is the outline of the fad diet – and it IS NOT RECOMMENDED. Note that there is also substantial evidence that grapefruit (unlike any other citrus fruit) can interfere with medication.

12 days on – 2 days off

Breakfast
1/2 Grapefruit or 4 oz. Grapefruit Juice (unsweetened)
2 Eggs (any style)
2 Slices Bacon

Lunch
1/2 Grapefruit or 4 oz. Grapefruit Juice (unsweetened)
Meat (any style, any amount)
Salad (any kind of dressing)

Dinner
1/2 Grapefruit or 4 oz. Grapefruit Juice (unsweetened)
Meat (any style, any amount) (fish may be substituted for meat)
Vegetables (any green, yellow, or red vegetables cooked in butter or any seasoning)

Bed Time Snack
1 glass tomato juice or 1 glass Skim milk

Vegetables Allowed
Red onions, green onions, bell peppers, radishes, cucumbers, broccoli, spinach, lettuce, cabbage, carrots, peas.

Vegetables to Avoid
White onions, potatoes, celery.

Look here for other meal suggestions.

Instructions

  1. At any meal you may eat until you are full – until you can’t eat any more.
  2. Don’t eliminate anything from the diet, especially don’t skip bacon at breakfast or omit salads. It is the combination of foods that burn fat.
  3. The grapefruit is important because it acts as a catalyst that starts the burning process.
  4. Cut down on caffeine- it affects the insulin balance that hinders the burning process. Try to limit to 1 cup per meal at mealtime.
  5. Don’t eat between meals. If you eat the combination of food suggested you will not be hungry.
  6. Note that the diet completely eliminates sugar and starches, which are lipids and form fat. Fat doesn’t form fat; it helps burn it. You can fry food in butter and use butter generously on vegetables.
  7. Do not eat desserts, bread, and white vegetables or sweet potatoes. You may double or triple helpings of meat, salad, or vegetables. Eat until you are stuffed. The more you eat of the proper combination of food, the more you lose.

Properties of the Grapefruit

The traditional grapefruit diet consists of a 7 or 21 day eating plan. 1/2 a grapefruit is consumed during breakfast, lunch, and dinner.

Recently the Scripps clinic, based in San Diego carried out a clinical trial and discovered the following:

“The 12-week pilot study, led by Dr. Ken Fujioka, monitored weight and metabolic factors, such as insulin secretion, of the 100 men and women who participated in the Scripps Clinic “Grapefruit Diet” study. On average, participants who ate half a grapefruit with each meal lost 3.6 pounds, while those who drank a serving of grapefruit juice three times a day lost 3.3 pounds. However, many patients in the study lost more than 10 pounds….. The researchers speculate that the chemical properties of grapefruit reduce insulin levels and encourage weight loss.”

By all means include grapefruit in your diet – it may give you an edge. But for serious and sustained weight loss – look elsewhere.

See Also

Grapefruit study

User Comments

  • October 9th, 2008Rebel

    Well, I’ve read all the blogs and I’m really excited about starting the diet tomorrow. I’m looking forward to shedding the winter “fat” that I’ve accumulated over the last few years. I have about 20 pounds to lose and I’m curious to hear how Nina is doing because she’s similar to me in weight and goals. It took time to put on all the extra pounds (although I swear it happened overnight) and this is a good diet to “jump start” my weight loss and see results in a short period of time. Like some of you said, if you don’t change your eating habits and lifestyle you’ll end up gaining back all the weight you fought hard to lose. I’m tired of watching the scale go up and down (mostly up). The success of the diet depends on you. There are many that have lost 40 – 50 pounds and have been on the the diet for several months. Kudos to you!! I hope to be a success story too. I can hardly wait until I can fit into jeans that I haven’t been able to wear in several years :o ) Good Luck to you all!!

  • October 9th, 2008Samantha

    Hiya guys, I’ve been on this diet about 10 years ago and I lost a good deal of weight. I’m thinking of going on it again and I’m looking to lose about 30-40 lbs. Can somebody please post what type of meats you allowed to eat? It’s been so long that I forgot.

  • October 8th, 2008Joy

    Evelyn,
    Yes I try to walk at leat an hour a day. I have done the diet without exercising, but have found that I just don’t lose as fast.

  • October 8th, 2008ry

    Day 8: Finally I’ve lost 2lbs… really not easy to lose weight but I have 53 more days to go. Tomorrow is my Dad’s birthday so I’m going to make a little cheating lol… but seriously I’m not going to be full. Oats and grape fruit juice is still on my menu for tomorrow and I’m not going to sacrifice my 8 days of dieting.

    My diet plan:

    Meals: Oats, green vegetables, a tiny piece of lean meat, a glass of 8oz grape fruit juice and some grapes for desert. I will drink a lot water as prescribe.

    Workout: I exercise by running and walking for half an hour or playing badminton or basketball every monday, wednesday and friday.

    We must have the will, determination and sacrifice to achieve our goals. Good Luck!

  • October 7th, 2008Brittany

    i started the diet on monday today is tuesday i have a slight headache at night i dont feel hungry i want to know if it matters he u drink the milk at night because i have’nt someone plz let me know

  • October 6th, 2008Evelyn

    Oh! and for anyone else who has successful stories in achieving there weight loss goal I would love to hear them, it keeps me motivated! I will also continue with updates on my progress as well. Good luck everyone!!!

  • October 6th, 2008Evelyn

    Joy, I just started this grapefruit diet as of yesterday 10/05/08 and was wondering if you had been doing any exercise with this diet plan, being that you have lost a significant amount of weight ” good for you.” I hope I can achieve the same results being I’m 40lbs overweight. If you or anyone has any tips on this diet I would greatly appreciate to hear them. Thanks!!!

  • October 3rd, 2008Joy

    Started the diet on 9/22/08, today(October 3) is day #12 I’ve lost 9lbs. Boy am I ready for for something other than lettuce. It’s not been that bad, haven’t been hungry between meals. I’ve lost a total of 17 lbs since 09/08/08. I saw an article on a carb-cycling diet. Has anyone lost anything on a carb-cycling diet, where you eat low carb one day and high carb low fat the next?

  • October 2nd, 2008MBreba

    Hi, I just called my husband and we are going to go on the diet, starting tomorrow 10/3/08. Have to go to the grocery store tonight. I have a friend that was on it last year and she swears by it. So I will keep ya’ll in formed until then. This is great thanks for all the info. Good luck to us!

  • October 2nd, 2008nita_in_australia

    Hi guys and congrats to the many of you who have done so well. It’s 2nd October 2008 and i have just scanned all the wonderful postings above. The grapefruit diet i initially read about, that Kylie Minogue reportedly uses to lose 7kg (15lb)in 2 weeks, calls for half a grapefruit to be eaten AT THE START of each meal. Previously, instead of going on the LOW-CARB HIGH-PROTEIN DIET, I used this approach to my everyday eating, having half a grapefruit (peeled & cut up into pieces) up to half an hour before each meal for about one and a half years and it worked really well for me as i continued to gradually lose weight despite not worrying about what I ate or drank (including champagne!). I have read that there is an insulin-lowering effect from eating this nutritious high-fibre fruit. Perhaps that’s the key. Actually, I also love eating large red or green fresh chillies when I’m dieting for getting those feel-good endorphins flowing and supposedly also helping the body get into fat-burning mode. As far as the grapefruits go, unfortunately I gradually forgot to pop them in my shopping trolley and focused more on cooking nice meals for my new family and I guess I’m paying the price now, needing to lose 20kg or 3 dress sizes. But for fast weight loss, yes, I have done the LOW-CARB dieting thing, even eating cheese as snacks, and one does lose quite a bit of weight but must be very careful when coming off it as the weight does tend to come back on quickly when you resume eating carbohydrates, even if exercising daily! I would like to give this GRAPEFRUIT DIET another try, having been inspired by all you’ve written above, and by my own experience eating half a grapefruit before each meal… only this time I will stick to it for 30 days or more and only gradually re-introduce low GI/high fibre carbs such as buckwheat crispbread (also great for many of us who are gluten-sensitive) when I come off it. I also believe that walking or cycling (I use the recumbant bike at the gym) at a pace where you are perspiring and have an increased heartrate, yet can still carry on a conversation, for at least 45 minutes most days is the key and I shall commit to doing this. Also, I have just finished reading The Fat Stripping Diet which is very scientific and, in a tiny nutshell, is all about keeping fat below 20g/day for women and below 40g/day for men in order to lose weight, in conjunction with daily exercise. (So I will be eating lean meats, soft* boiled eggs and not smothering my food with butter and oil, that’s for sure, just a little olive oil or flaxseed oil for me. [*A naturopath advised that eating soft boiled eggs does not raise cholesterol, but eating hard boiled eggs does! Also, drip-filtered coffee doesn’t raise cholesterol but espresso coffee, incuding the shots used in cafe lattes and cappucinos, does! The lady who loves green tea should probably drink decaffeinated green tea throughout the day so you’re still getting the anti-oxidants and enjoyment without all the caffeine, which also has an effect on raising blood pressure.) The daily exercise recommended in The Fat Stripping Diet book: brisk walking because that is the best for keeping you in the fat burning zone – it takes about 20 mins to get into the fat burning zone, so make it count and do 45-60 mins! – (and also helps bone density), whereas workouts that are too vigorous keep you in the cardio zone (great for heart and lungs, but calls on stored glycogen for fuel instead of getting the fat burning process going). I wish i knew this sooner cos I’ve been working my butt off (not literally lol) over the past few years doing 5 full-on cardio sessions per week including Les Mills’ Body Attack classes – plus Body Pump. It didn’t help me lose any weight – in fact I’ve only gained it. God bless the grapefruit and good luck to one and all in this continuous battle to keep our tyrant tastebuds under control and regain & keep our healthy, slender figures! :)

  • October 1st, 2008sherlonca6

    Hey! i started out at 180 pounds, and now i’m down 165.
    This diet really works………hooray for me and anybody who try’s it.:-)

  • September 30th, 2008katiemufasa

    You can put vanilla extract in skim milk for bedtime snack.

  • September 29th, 2008ry

    my weight is 140 Lbs, 5′5 and my goal is to lose 10 pds and look fit for my wedding day on 11/30/08 so I have 2 months to fulfill it. My diet plan on each every meal is eating oatmeal, vegetables, a tiny piece of meat, a glass of 8oz grape juice and some grapes for desert. I will drink a lot water as prescribe. I exercise by running and walking for half an hour or playing badminton or basketball every monday, wednesday and friday. I have already started this plan 3 days but no loss of pounds yet… I understand it’s still early to expect. My only concern is the grape juice.. is it really safe drinking a total of 24oz a day? 3x a day on each meal.. Even though it’s 100% grape juice but it still have natural sugar on it ( but it’s still sugar ). I’m afraid to have diabetes for doing this for 2 months. I really do hope it’s safe to our health. I will post updates on my progress. Wish me luck. =)

  • September 29th, 2008=)

    my weight is 140 Lbs, 5′5 and my goal is to lose 10 pds and look fit for my wedding day on 11/30/08 so I have 2 months to fulfill it. My diet plan on each every meal is eating oatmeal, vegetables, a tiny piece of meat, a glass of 8oz grape juice and some grapes for desert. I will drink a lot water as prescribe. I exercise by running and walking for half an hour or playing badminton or basketball 3x a week. I have already started this plan 3 days but no loss of pounds yet… I understand it’s still early to expect. My only concern is the grape juice.. is it really safe drinking a total of 24oz a day? 3x a day on each meal.. Even though it’s 100% grape juice but it still have natural sugar on it ( but it’s still sugar ). I’m afraid to have diabetes for doing this for 2 months. I really do hope it’s safe to our health. I will post updates on my progress. Wish me luck. =)

  • September 29th, 2008krissi.

    HEY! i am 190 pounds and i would like to be 150.
    how long do you think it will take?
    also can you eat apples on this diet?
    i cant believe you can eat any meat…so you can actually eat fried meats?? PLEASE help!! (:

  • September 27th, 2008chamberlainrose

    i just started this diet today. in order to jump-start my weight-loss. i will do it for 2 weeks, then probably start re-introducing good/complex carbs slowly. SBD style. will keep you updated. good luck to everyone!

    No yesterdays are ever wasted for those who give themselves to today. ~Brendan Francis

  • September 27th, 2008miss t

    i have been on this diet for 10 days and i am so happy with this diet. i want to lose 50lb by christmas wish me well.and good luck to everyone!!!!

  • September 26th, 2008Anastasia

    i just started this whole diet thing on 9-25-08 so i feel ya daniella!!!!i am hopein this works i am 5′9 and 230lbs i may not look it but i feel every pound of it i just had a beautiful 9 lbs baby girl 11 months ago so i am still tryin to loose all this exsess weight i gain allmost 100lbs and she is my first baby i really hope this diet works wish me luck and i am very open to any suggestions!!! Thanks!!!

  • September 26th, 2008daniella157.4

    157.2 today belly looks smaller….

  • September 26th, 2008daniella157.4

    Hello all,
    Day 2:
    I started this diet yesterday, so far so good,157.2 I walk about 2 mile a day. do u have to drink just water? I love green tea with no sugar? can I have this?

  • September 25th, 2008daniella157.4

    I started this diet today 09,25, 08, i weight 157.4, I’m 5′1 looking to lose 40lbs…. Oct 6th I should weight less,

    good luck to all

    keep u posted

  • September 24th, 2008rachel

    can i eat avocado and tabassco with this diet?
    Please some one let me know
    ryansmom917@yahoo.com

  • September 24th, 2008jay

    hi
    i am satarting this diet today and with the full assurance that i will lose fifty pounds, so with u people with doubts about this diet, whats worst, having fifty extra pounds weighing u down or giving de ting a try.its worth it so please bstop the doubting. will keep u posted

  • September 24th, 2008garrett honnoll

    im given it a try wish me luck

  • September 24th, 2008niceandthin

    The grapefruit diet does work…u first begin to loose inches, so make sure u start to measure yourself then you loose weight..It worked for me… I was very focused and dedicated to the diet and it worked..I see that my face and my thighs are smaller along with my waist line and after 3months I lost a total of 30pounds. The diet also helps with your eatting habit!!!!

  • September 23rd, 2008Joy

    Hey this diet works. I did this diet about 13 years ago and lost 54 pounds from February 13 to April 29. I walked every day rain or shine for an hour. I have tried this diet several times sinnce then, and can not lose anything without exercising but of coarse I almost 40 now. I started the diet back 09/22, and so far I have lost 2lbs. Before, I don’t remember losing anything until day 5. Somebody help me, I didn’t eat any cheese last time, but can you eat cheese which has no carbohydrates, and still lose weight. Also before, I ate 2 slices of bacon for breakfast, can you eat more bacon and still lose weight. Please respond.

  • September 23rd, 2008SMH

    what about sushi?
    can you eat that?

  • September 18th, 2008needtoloss

    HI everyone I just started this diet 9/18/08 I will be posting in 12 days and good luck to everyone!!!

  • September 17th, 2008Nina

    I just started this diet last night(09/16/2008). So far so good. I am 5′3″ weigh 140lbs and I would like to get down to 120lbs by October 21,2008. Although 125lbs would be fine. Plan on starting to walk 1 hour everyday tomorrow. I will keep you posted!

  • September 17th, 2008Coley

    starting this diet tomorrow 09/17/08 heading to australia at the end of October hoping to lose about 30lbs, fingers crossed anyway…best of luck to everyone who is on it!!!!

  • September 15th, 2008alice st.lucia

    i will try this diet and give u guys results

  • September 11th, 2008bea

    This diet really does work but you have to add some kind of exercise like at least walking for an hour a day would be perfect. Another thing dont eat too much grapefruit i believed eating more than the recommended would help me loose more weight faster but in only gave me anemia and gastritis so this diet can be good to loose weight but can also affect your health so you decide if u want to look and feel pretty or be healthy.

  • September 11th, 2008crazy lady

    I have been on the diet 3 weeks today… I have lost 10 lbs. and staying at 10 lbs. for the past week. I really have not taken my 2 days off. I just had a few cheats here and there and counted that for the days off. Do you actually need the 2 days off to jump start the diet or why am I at a stand still. Because it was very exciting to see the quick progress when I first started. Any suggestions……

  • September 10th, 2008Grand Diva

    I have been on tis diet off and on for about 7 years now. The catch is once you’ve lost the desired weight you must incorporate lifestyle changes! If not you will gain double the weight back! I am telling all of you this because of past experiences. I will begin this diet again this week. It’s better to start on a Monday because you will have every other weekend off! You must follow the diet exactly the way they tell you to and you will see results! We as Americans are lazy and want the easy way out. Daily activity is required to maintain a healthy or desired weight! Lets all pitch in to help one another and America stay healthy. If you want to do this diet as a jump start to your diet plan, it will work! Enjoy!!!

  • September 9th, 2008Purpose

    Cheeks…… I used to buy the Ocean Spray 100% juice, but now I buy the Publix brand, it is a lot a cheaper. It is not on the shelf, you will find it with the orange juice. I cheat a lot, but not until I did it for 12 days and saw the results. The results encouraged me not to go over board. The key is to eat until you are full. Then you begin to eat less and the other foods become less desirable. To help with my sweet cravings, I drink coffee (with splender w/ low fat chocolate redi-whip)HMMM!, also, I have found Edy’s slow-churn fudge chuck or vanilla sugar-free Ice cream (1 cup). Now this is not an everyday thing, but it helps. I do not recommend cheating until after 30-days.

    Stacy……. I eat all kinds of meat and as much as I want (ie. barbeque, fried, smothered, baked, steamed etc.) I know some people don’t recommend this, but it still works. Of course the stricter you are the faster you will lose weight, but 11 1bs, three inches in one month is good enough for me. I feel so much better.

  • September 8th, 2008Dezzi B

    This diet works…i tried it when i was around 13 in a half..and i stayed on it for nine months including the two day breaks i had every 12 days…and im telling u it works well..yeah u’ll be hungry at the begining and of course you could get use to it later on..i lost 180 ibs in 9 mnths on this diet it works…i kept it for about 4 in a half years and last yeah i gained about 50 back b/c i slaked off i will be starting this again tuesday (09/09/2008)…i think im gona try it for a year…but yeah try it good…for anybody….

  • September 7th, 2008CHEEKS

    Purpose….. hey there. Congrats on the weight loss. I’m happy for u. I I stopped my diet. I cheated really bad and couldn’t stop. Chocolate is my guilty pleasure and not to mention pizza. Did u drink the juice or eat graprfruit?

  • September 7th, 2008CHEEKS

    Hey purpose… I stopped the diet. I didn’t see any changes. from reading ur blogs I am so happy for you and obviously it works. I just need to get back on it and stick to it. Its just so hard eating the same food. How did u overcome that? What juice did u drink? I got the OceanSpray…. please give me some pointers. Thank you.

  • September 5th, 2008firestroker

    I did this diet years ago and lost over 30 pounds in about 3 months. I have 15 lbs to lose after having my son in Jan. and am on day 7. It really does work, you just can’t expect ridiculous results overnight – give it at least 30 days and you will be amazed!

  • September 4th, 2008STACY♥

    I REALLY WANT TO DO THIS DIET.. CAN SOMEONE LAYOUT SOME KIND OF MEAL PLAN FOR ME.. IKNOW THE BREAKFAST, BUT WHAT KINDS OF MEAT DO YOU ALL EAT FOR LUNCH AND DINNER??

  • September 4th, 2008Purpose

    Okay! Here it is as of 8/31/08, I lost 11 lbs with a lot of cheats here and there and no execrise. My first goal is to get below 200 lbs. I have 5 more to go. The second goal is to lost a total of 20 lbs. I have 9 more to go. My ultimate goal is to lose 40 lbs. The key is planning and not allowing yourself to be hungry, eat until you are full. Don’t set have unreachable goals, be realistic. It works!!!!!!!

  • September 1st, 2008coloradoman

    I am starting this diet tomorrow sept 2nd. I have tried different diets and fasts in the past with success. I always seem to fall off the boat somewhere once its off ! Shame on me. So here I am 5′10 200 , I will get down to 180 slim and trim. The nice thing about this diet is you don’t have to weight out portions, or starve in between meals..eat all you want it says ! Cool ! I love rabbit food so this should be a breeze..lol

    GOOD LUCK to everyone and CONGRATS to everyone that has succeeded !!

    I wish we could post before and afters !!

  • August 29th, 2008mama cat

    I just started 8-28-08. My Birthday is 9-11. And i hope to lose 10pds. Trueley I need to lose about 50. But 10 will be my gift to me. I hope I stick to the diet. I know how I can get bored. But If I think it’s going to be a healthy me and sexy I should be good. Someone said you can be on it 7 to 12 days is that true? If anyone wants a buddy ?samuelst1@yahoo.com

  • August 28th, 2008Miracle?

    C.w.–5′8″ – 185 lbs
    G.w.–5′8″ – 140 lbs

    I will start this diet on 08.29.08 and I wanna be done with the 45 pound weight lose by novemeber ishh. Well ima try to exercise as well since I want fast results, I hope I can get thru with this cuz I’m tired of trying ang trying over and over coutless times. Anyways I will keep you guys updatedd.

    Lates

  • August 28th, 2008Sexygirls

    There are two of us in the office who are going to start on 9/2/08.We both have known of the diet and people that have done it before and it been a success. Reading more research and reading these comments have encouraged us to go ahead and give it a try. Sexygirl #1 is 5′6″ 226 lbs and would like to get down to 165-170lbs. Sexygirl #2 is 5′4″ 222lbs and would like to get to 150lbs. We will also workout everyday. We’ll keep you posted monthly.

  • August 28th, 2008Grapefruit

    I started it just yesterday (08.27.08), I followed it strictly and did some exercise (mostly dance). I’ve lost 1.5 kg which is about 3.3 pounds. I’m sure it’s mostly water weight but I started drinking lots and lots of water and it’s good. I think I like this diet— I don’t go starving and I don’t get as much cravings! :)

  • August 26th, 2008bibi

    I started this diet on (8/25/08)…I’m 5′2 – 175lbs, my goal is to lose 35lbs in 3 months….wish me luck… :)

  • August 25th, 2008urchoice

    I started this diet on the 18th at 215lbs and is now down today(8/25/08) to 203lbs. I love being able to eat meat cooked any style. Chicken has been my best friend : ). I am getting closer to my FIRST goal which is 180lbs…looking forward to losing lots more. I will keep you all posted on my success. Exercise is also IMPORTANT that way you don’t gain back as much weight on your 2 cheat days.

  • August 25th, 2008Royal

    Hi guys Ive started this diet since August 18th.. I started with 200 lbs and 5′2… I hope to be done to 140 by November.. I’ll keep you posted.. and about the fruit ..dont do it thats what keeps you from losing alot.. i will weigh in on August 29 the 12th day.. and let you know.. P.S. I almost eat less the normal cuz of the diet.. I just dont feel like eating alot.

  • August 21st, 2008NITA

    Good luck Channelle…I just started the diet on the 18th. I am not a diet fan at all and I am famous for breaking diets quick, because of the restrictions. I did cheat a little by having a potato yesterday. I’ve weighed myself early to see how I was looking since the word is you will lose 5 pounds on the 4th day. I started at 224 lbs and today I am 219 lbs.

    It started off a little hard, because I did have headaches. I am not expecting a super fast weightloss. I think you have to eat on time and if you are use to eating a lot or several times a day, is the reason why they say eat until you are full. I was eating light and I was straving, but now that I’ve increased my portions per meal I am ok. I don’t really believe you are necessarily losing water weight either, because before I started this I did not drink a lot of water. My body is really solid with FAT, lol! I believe this diet will be durable for me, because I love meat and veggies. The grapefruit juice wasn’t as bad as I thought.

    Channelle if you want to continue to blog about our successes and support each other, please do and anyone else as well. Good luck people, I will check back and update with my stories.

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Last modified: February 16, 2009