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Fat Fighting Foods » Does Grapefruit Burn Fat?

Does Grapefruit Burn Fat?

grapefruit dietGrapfruits are often rumored to help people lose weight, and many dieters want to know whether the rumor is true.

For example, Sarah Parsons asks:

“Does grapefruit juice burn fat?”

Aly Guevarra emailed me with this question:

“Hey…i was just wondering if its true that grapefruit burns fat?”

And Jill King wrote:

“Is Grapefruit a fat burner fruit?”

The Grapefruit Diet

Since the 1970s, the grapefruit diet has waxed and waned, with claims of kick-starting the metabolism and enabling rapid weight loss. For many, the weight loss may have occurred simply because they stopped eating many unhealthy foods for a while and underwent caloric restriction after converting to a monodiet of grapefruit. However, for most people, the weight came right back once they got off the diet.

Grapefruit’s Fat Burning Abilities

An recent study carried out by scientists in the Division of Endocrinology at Scripps Clinic (La Jolla, CA) showed that eating grapefruit helps with weight loss and insulin resistance. There was a significant difference in weight loss for those who consumed either fresh grapefruit or grapefruit juice over placebo. An average of 3.6 pounds was lost in 12 weeks for patients in the study, and insulin resistance improved. The authors concluded that “Although the mechanism of this weight loss is unknown it would appear reasonable to include grapefruit in a weight reduction diet.” These scientist know what happened but they don’t seem to know why it happened.

Why I Think Grapefruit Helps Weight Loss

Most nutritionists say that it’s unlikely that grapefruit has any magical properties which can cause weight loss in the absence of additional diet or lifestyle changes. Perhaps the reason for the weight loss is because frequent eating of grapefruit alkalinized the body. People know that citrus fruits are acidic, because the acid can burn the skin or mucous membranes.

When you use a piece of pH paper to test an orange, you will get an acid result. However, when citrus fruits are metabolized by the body, they turn into something called “alkaline ash.” That means they’ve been converted to something basic, or alkaline, even though they started out as an acid. When the body is too acidic, the biochemistry changes and weight loss becomes difficult.

In general, most fruits and vegetables are alkaline; meat, eggs and dairy products are acidic. Those who eat an imbalanced diet that leans too heavily on meat and dairy and does not include enough fruits and vegetables may end up with a body pH that is too acidic. Eating grapefruit, citrus fruits in general, or enough of any fruit or vegetable can alkalinize the body and spur weight loss.

Grapefruit And Drug Interactions

Grapefruit juice can interact with some medicines, causing more to be absorbed into the bloodstream than would otherwise occur. The end result is that blood levels of these medications could increase, leading to overdose symptoms and potential toxic side effects. Consult your physician or pharmacist for more information, or obtain literature on the drug you’re taking and see if anything is mentioned about grapefruit juice being contraindicated.

I hope this helps!

Once again, thanks for all your questions! As I’m writing this, I have 1,203 emails to go through!!

Shola xx

  • 1. sandy george  |  June 17th, 2007 at 11:29 am

    My problem is the last one mentioned-drug interaction. I love grapefruit, but my cholesterol medication, Lipitor, is not compatible with it. Wish there were some way to change that.

  • 2. sandy george  |  June 17th, 2007 at 11:36 am

    I have found that after eating certain fruits, grapefruit among them, I feel full for longer than expected, thereby eating less of other foods and losing more than I would without the fruit.

  • 3. Matthew Ford  |  June 17th, 2007 at 12:11 pm

    I have Epilepsy and Grapefruit Juice has been warned as a No No, as it screws up the medications which can put people in a coma when the medication hits you all at once! That’s like when you leave the propane on the Barbecue going for a while, and then take a match to it. Wooof!!! A big ball of fire instead of a soft gentle flame on the grill. So Grapefruits are out. Any other ideas???

  • 4. Loren Milian  |  June 17th, 2007 at 12:49 pm

    Thank you for letting me know about the grapefruit. I always wondered whether it helped to lose weight or not.

    I have very sensitive teeth and I am worried that the acid in the grapefruit might aggravate them.

    Is there an alternative fruit I can eat that can have the same fat burning effect?


  • 5. Cristhabel Mitchell  |  June 17th, 2007 at 12:55 pm

    The article about the Grapefruit helping you to lose weight is great. I have been eating Grapefruit as I have read somewhere that it helps one to lose weight but how many should one eat daily for it to have the desired effect. Can you please advice me? Thank you.

  • 6. Pam  |  June 17th, 2007 at 1:39 pm

    what about it….I too am on a medication that will not allow me to eat grapefruits/grapefruit juice….is there something else?

  • 7. sharon callahan  |  June 17th, 2007 at 2:02 pm

    Hi My question is this, Iv’e been told I have gout arthritis, and to take Uricinex, and not to eat red meats,and dairy products like cottage cheese, sour cr. and yogurt, as these aggravate the situ. There are two foods, that I must eat but I don’t know what they are. Do you? I think one is cherries. Also lots of veg. and greens, like salad, spinich, and herbs. For pain ibu. Thanks. Sharon

  • 8. gwendolyn steele  |  June 17th, 2007 at 2:08 pm

    i want to know if i eat a grapefruit every say with my three meal a day. will i loose weight and smalll portion of food.

  • 9. chris  |  June 17th, 2007 at 2:19 pm

    is bp control renedil, 2.5 mg daily, compatible with drinking 3 oz grapefruit juice daily?
    Thanks for answering?

  • 10. Mariana  |  June 17th, 2007 at 4:24 pm

    I’ve heard about it, but after 3 months of eating every day a grapefruit, I do not see a difference in my weight. I do not eat fried foods, nor fast foods, so I should lose weight.

  • 11. Elizabeth Jones  |  June 17th, 2007 at 8:27 pm

    I take medication Avapro and Grapefruit interferes with this medication, is there an alternative?

  • 12. Mlyons  |  June 18th, 2007 at 5:07 am

    Grapefruit is a no, no, with my medication. Need an alternative.

  • 13. Margaret Massel  |  June 18th, 2007 at 6:58 am

    For those having trouble with cholesterol and tryclcerites try increasing your niacin. There is a low flush niacin on the market and it has worked in others.

  • 14. Margaret  |  June 18th, 2007 at 8:19 am

    my drugs=no grapefruit what other fruits are fat-busters?

  • 15. irene jackson  |  June 18th, 2007 at 10:55 am

    I have arthritis and grapefruit and oranges reallygive me hell I was wondering about pink grapefruit does anyone know if it has the same affect

  • 16. Alberto Hernandez  |  June 18th, 2007 at 1:13 pm

    Grapefruit is clean, good, delicious, easy to peel and very filling.

    Now, does it render the same positive effect if you eat the sections with the skin than without??????

    Is one type of grapefruit better than others????

    Is a fruit called the uglyfriut ( cross between a grapefruit and an orange) have the same or better effect on people that a grapefruit has????

    Thank you , Always Alberto Hernandez

  • 17. A Grapefruit Substitute &&hellip  |  June 18th, 2007 at 5:17 pm

    […] ← Does Grapefruit Burn Fat? […]

  • 18. BETH CARPENTER  |  June 18th, 2007 at 5:56 pm


  • 19. deirdre Coyne  |  June 19th, 2007 at 6:22 am

    Hello Shilo.

    My question is: Is baking soda the same as bread soda?
    If so, how much do yo take in a day? I do not like grapefruit. Is a glass of grape fruit juice sufficient enough if one must include it in their diet booster?

  • 20. SOPHIE  |  June 19th, 2007 at 9:56 am


  • 21. Enchante  |  July 12th, 2007 at 2:01 pm

    I find pink grape fruit to be milder in acidity and more pleasant to eat as well as tastier.

  • 22. Enchante  |  July 12th, 2007 at 2:11 pm

    The name pink grape fruit reminds me of Pink Champagne (an elegant drink), but without the nasty alchohol.
    Additionally, consider this: If you eat the grape fruit say cut in half, for one thing consider the visual feast, which can be so gratifying.
    Also, grapefruit cut in half, gives you some time playing
    with your food, as you work your way through the segments (ain’t the creator a genius?), additional gratification, no extra calories!!

  • 23. Enchante  |  July 12th, 2007 at 2:14 pm

    Okay the verdict is out.

    I’m a food lover, and like grape fruit, who wouldn’t??!!

  • 24. cash soma buy  |  August 7th, 2007 at 2:36 am

    soma buy overseas buy soma mortgage

  • 25. junie sowah  |  August 10th, 2007 at 2:22 pm


  • 26. amani  |  August 10th, 2007 at 4:24 pm

    this question may make me sound stupid…but keep in mind im new to this whole comment and reply thing. just one question where r the replies?? i wanna hear the answers for these people.
    thank you.

  • 27. Gail Rika  |  August 11th, 2007 at 6:45 pm

    I too would like to read the answers to all the questions asked by various people as many of the questions are the same for us all, I’m sure.
    Please oblige.

  • 28. sue  |  August 12th, 2007 at 1:19 pm

    yes it does work ive done it for 2wks and lost 7lbs

  • 29. Martha  |  September 16th, 2007 at 8:18 am

    You should know about the grapefurit and ceritan medications you take and can’t use Grapefurit before saying it is a fat burner. I can no longer take grapefurit because of liptor, Coreg.

  • 30. mariettaaugustine  |  September 17th, 2007 at 8:21 am

    i use to take grapefurit and i found i was looseing some of the fat if thats what it takes to loose this belly fat i will try it again

  • 31. CARMEN B  |  September 17th, 2007 at 9:09 am

    I’ve enjoyed your comments, but I’m very confused, since I’m stuck with my current weight. I’m trying to eat less, healthier, exercise, but there’s just NO ENERGY. Tried energy drinks, vitamins, exercise, nothing works. What do I do? Help please!!!

  • 32. mary_ann_reo  |  September 17th, 2007 at 4:30 pm

    Read it.

  • 33. great info, thank you...loretta  |  September 19th, 2007 at 9:14 am

    thank you for the information. it has been alot of help with my weight loss. i have lost 32lbs since march thanks too all the info you send…merci loretta

  • 34. Gail Rika  |  September 20th, 2007 at 4:29 am

    I truly find all your foodie information so educational and well targeted to helping those of us with a weight problem. I begin my day with a glass of warm water with a squeeze of fresh lime juice, tablespoon of manuka honey,and a sprinkle of cayenne pepper. It puts a spring in one’s step. Thankyou so much for all the motivation you offer us

  • 35. Elizabeth  |  September 28th, 2007 at 6:26 pm

    I am interested in this but I, too, am taking Lipitor and can not eat or drink Grapefruit (juice). I’m 71 and have about fifteen lbs to lose (mostly stomach now) I have RA, Fibromyalgia, Spinal Stenosis and cannot exercise the way I use to. Will this help me? I’ve been reading every article I have received to date and I take it most of these replys are from younger people. Please help??

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