Updated: 07/11/2017 - Site sponsored by Dietspotlight Burn

Grapefruit Diet Review- Does This Diet Plan Really Work?

  • 32 User Comments
  • Rating: 3.2. From 38 votes.
By Summer Banks Jun 08, 2017

This review is what happened after I obsessed for weeks over the Grapefruit Diet. We at DietSpotlight dug deep and conducted a thorough investigation, examining the ingredients, side effects, clinical research and overall customer care. We also focused on dozens of user comments from all over the web. At this point, we summarized and compressed the data we collected to give you the facts you need.

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What is the Grapefruit Diet?

First off, the Grapefruit Diet ingredients include plenty of water, whole grapefruits, and cutting back on simple carbohydrates. Put plainly, you follow this eating plan for 10-12 days. It’s supposed to help you drop up to 10 pounds. You can eat lean proteins such as poultry, eggs, fish and certain cuts of beef. It’s also fine to have one cup of coffee each day. You need to eat a grapefruit with or before every meal. Also, it’s important to avoid sugar. Your overall calorie intake should be around 800 per day.

The Grapefruit Diet has been around since the 1930s. There are some different variations of this eating plan, but regardless, it’s supposed to help boost metabolism. The enzymes in the grapefruit should aid with digestion, while providing vitamin c. Also, you are encouraged to consume eight glasses of water daily, which may help with satiety. Men and women of all ages can try this diet, but read on…

Calorie Restrictions – “Concerned Yet?”

The first concern we have with the Grapefruit Diet is restriction. “Limiting your daily calorie intake to 800 is pretty extreme, and may cause side effects like dizziness, nausea, lightheadedness and fatigue,” says our Research Editor.

One person reported, “Tried the Grapefruit Diet. Not impressed. Lost a few pounds, but felt dizzy and weak a lot. Not worth it for me.”

But, not all users have experienced Grapefruit Diet side effects. A different individual stated, “Definitely cleans out the colon. I lost a few pounds within the first couple of days.”

Another commented, “Pretty strict diet plan to say the least. It can help you shed a few pounds before an event or something like that.”

Short-Term Results With the Grapefruit Diet – “Another Issue”

Another issue we have with the Grapefruit Diet is short-term weight-loss results. According to one person, “This is kind of a fad diet. It will help you drop a few pounds, but it doesn’t last. After all, it’s only for 12 days. You go back to your old eating habits and the weight comes right back.”

However, a different user had this to say, “I like the Grapefruit Diet for cleansing purposes. I would not recommend it for serious weight-loss, but it helps flush out built-up waste.”

“There are a few diets like this. The lemonade method comes to mind. While you can shed a few pounds, it’s nothing great,” said another person.

The research we’ve done has shown if there is a specific aspect of a diet program that is quite troublesome (calorie restrictions, short-term results, side effects) the odds of long-term success are not good. If the Grapefruit Diet does not produce long-term results in most people, this could be a deal breaker.

The Science – “Any?”

We did not find any actual clinical studies regarding the Grapefruit Diet. However, any time you cut your calories to 800 per day, you are going to lose some weight. On the downside, this may leave you feeling drained and fatigued. The weight you lose is likely to come back once you resume your old lifestyle.

The Bottom Line – Does Grapefruit Diet Work?

Now the moment you’ve been waiting for. This is our bottom line on the Grapefruit Diet. To start with, we like that this plan encourages you to eat more citrus fruit, which contains fiber and vitamin C. It’s also good to see that this method involves drinking a lot of water. On the other hand, we have some doubts about this diet because of the extreme calorie restrictions. Also, we’re concerned about the short-term weight-loss results.

If you’d like to drop more pounds, then we suggest you select a diet or weight-loss supplement that is backed by solid science, does not call for extreme calorie restrictions and is supported by plenty of encouraging user reviews.

Among the best products we’ve seen this year is one called Dietspotlight Burn. This supplement contains a blend of four ingredients, some of which have been clinically tested and are shown to help ignite fat loss and increase metabolism. You don’t have to cut back to 800 calories a day and results are lasting when taken with a healthy diet and exercise program.

The makers of Dietspotlight Burn are so confident in their product they’re offering a special trial, which is very encouraging.

Previous Grapefruit Diet Review (Updated August 12, 2013):

What You Should Know Before Starting the Grapefruit Diet

The Grapefruit Diet is a weight loss program that encourages men and women to consume grapefruit. This fruit is claimed to assist with fat burning and increasing the user's metabolism. The official website states that users can drop up to 10 pounds over a 12-day period while strictly following the diet this long. The key is to consume one half of a grapefruit prior to each meal. However, dieters are not supposed to consume more than a total of 800 calories each day during the 12 days. The key active component found in the Grapefruit Diet is a "fat-burning enzyme," which is naturally a part of grapefruit. Since the fruit is eaten before each meal, it assists the user with burning fat and calories from the meal more rapidly. Grapefruit is a fat-free food and it doesn't contain much sodium; therefore water retention is minimized as well. Other healthy components of the Grapefruit Diet are Vitamin C, Beta-carotene (reduces cholesterol), antioxidants and fiber. However, there are a few drawbacks mentioned on the Grapefruit Diet official website such as low protein overall, possible dizziness due to the change/lack of nutrition and an overall lack of vitamins and minerals. There are no dietary supplements involved with the Grapefruit Diet. There is a diet review offered on the official website discussing when and how the Grapefruit Diet began. Testimonials are offered on the website in a discussion forum that centers on the Grapefruit Diet.

Product Features - Details on the Grapefruit Diet

The Grapefruit Diet is basically an eating plan that focuses on the consumption of grapefruit before each meal. Women and men are claimed to lose weight by eating a half of a grapefruit before breakfast, lunch and dinner. Additionally, only 800 calories are intended to be consumed each day for 12 days total. Grapefruit contains a "fat-burning enzyme" that assists the user's metabolism. Exercise is not recommended with the Grapefruit Diet and users are supposed to lose up to 10 pounds. Eight 8-ounce glasses of water are directed to be drank each day and no snacking is allowed. There is some research findings on the Grapefruit Diet provided on the official website.

Grapefruit Diet Advantages

  • Grapefruits are healthy overall and contains Vitamin C, Beta-carotene and antioxidants.
  • Though they can be difficult to follow sometimes, the instructions for this diet are very clear.
  • The Grapefruit Diet is suitable for both women and men.

Grapefruit Diet Disadvantages

  • There are no fat burner supplements incorporated into the Grapefruit Diet.
  • The Grapefruit Diet requires a rather drastic change in the user's eating habits, which may prove quite difficult for some individuals.
  • There are no appetite suppressants involved in the Grapefruit Diet.
  • Regular exercise is discouraged for individuals on the Grapefruit Diet.
  • Only 800 calories can be consumed each day for those on the Grapefruit Diet, which could leave some users under-nourished.
  • The Grapefruit Diet can lead to low protein levels, cause dizziness and may result in a lack of vitamins and minerals.


The Grapefruit Diet is certainly an interesting one. There aren't any diet pills or liquids involved and exercise is actually discouraged. On the bright side, this weight loss program provides the user with ample Vitamin C, antioxidants and Beta-carotene. However, the drastic lifestyle change that goes along with following this diet may not be so desirable for some individuals. Naturally it would be more attractive to more people if the Grapefruit Diet allowed the consumption of more than a mere 800 calories per day. It could also be more appealing if it encouraged a regular fitness regimen and came with some sort of appetite suppressant.
Learn More About Dietspotlight Burn »
Summer Banks Dietspotlight Author
About the Author:

Summer Banks, a content strategist at Dietspotlight, has researched over 5000 products in the past 10 years. She has years of nursing training, experience as a manager responsible for 15 supplement brands, and completed coursework on Food and Nutrition from Stanford University. full bio.

Rating: 3.2. From 38 votes.
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Grapefruit Diet Review

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Leave a comment or review

  Medications not to take
Joyce stewart

What medication counter acts with grapefruit? What medications should you not take when eating grapefruit?

Maribel (Editor)

Hi Joyce! Because of possible interactions with medications, please make sure to consult with your physician before taking this product.


any anti depressants will not work when eat or drink grapefruit

  Can eat whole grapefruit

can i eat a whole grapefruit before a meal?

Maribel (Editor)

Hi Erika! For detailed diet instructions, please refer to the Grapefruit Diet official website for more information.

can you have diet sodas on the grapefruit diet

can you have diet sodas on the grapefruit diet?

Maribel (Editor)

Hi Cindy! For detailed diet details, please refer to the Grapefruit Diet official website for more information.

   I take it by open the capsule

I can’t swallow the tablets, can I take it by open the capsule. Will the results be same if I do so?

Maribel (Editor)

Hi Yvonne! For detailed product and usage instructions, please refer to the Grapefruit Diet official website for more information.

Can you have diet sodas on the grapefruit diet and is peanut butter allowed?
donna smith

Can you have diet sodas on the grapefruit diet and is peanut butter allowed?

Maribel (Editor)

Hi Donna! For detailed diet instructions, please refer to the Grapefruit Diet official website for more information.


Yea i drink them and it doesn’t seem to affect my loss, not sure though, haven’t tried without them lol. I have lost 13 lb in two weeks.

  like to try it

I would like to try it..

Vanna Insko

I must thank you for the efforts you’ve put in writing this website. I really hope to view the same high-grade blog posts by you in the future as well. In truth, your creative writing abilities has motivated me to get my own, personal site now ;)|

Your Nameerica

i have been on the grapefruit diet for 3 days now and have yet to lose any weight.mall I drink is water ( may not be 8 glasses) I’m a hairdresser and can’t always have time to drink. I thought I would lose just a little… But nothing. I’m always running around and active, not sure why it’s not helping me.

Victoria (Editor)

Hello. All users are different and can experience different weight-loss results, but exercise in conjunction with a healthy diet and supplements have shown to help with weight-loss.


I have been on the grape fruit dieet for 3 weeks the first week i lost 3kg and the next 2 weeks I haven’t lost anything. I walk 2km a day. Can anyone telling my why I have stopped losing weight?


I am having the same issue.


I started this diet on Monday. I weighed 260. Today is Wednesday and I am down to 255. I am excited to see what will happen after a month. I am doing the original version and I am eating extra bacon in the mornings because I love bacon. I try to eat all my veggies as well. I plan on adding some walking in order to be prepared for the walk for a cure 5k later this month. Fingers crossed!! In a couple months I plan to switch over to Paleo.

  I don't feel weak,

I know it’s been a year since someone posted anything but for the heck of it. I tried the grapefruit diet. I follow it pretty much to a T and I’ve lost almost 16 pounds in 3 weeks. I don’t feel weak, moody or shaky. I eat a lot of salad at lunch with my protein and I eat a whole bag of veggies with my protein for supper.


I started the grapefruit diet 1/23/17 and today is 1/30/17 and so far I have lost 10 lbs. I don’t feel weak or moody. I eat 2 eggs loaded with bell pepper, onions, spinach, tomatoes, zucchini and cheese in the morning to help me feel full till lunch along with 2 strips of turkey bacon and of course 1/2 fresh grapefruit. My lunch is romaine salad with grilled chicken, avocado and chipotle dressing 1/2 grapefruit. Dinner is 1 cup of dieter’s tea no sugar, grilled chicken and green veggies, either green beans, broccoli, or cabbage plus the grapefruit

  Can drink coffee with it?
Sherry (Verified User)

I drink 1 1/2 cups of coffee every morning it helps me to have a BM. The grapefruit diet says limit caffeine but then I saw where some people said they drank diet cokes and it still worked . If I drink my coffee first thing in morning and then eat my grapefruit and breakfast will it still work for me ?


Do you drink black coffee with out sugar??

  can anyone send me a menu pleas
bethany (Verified User)

does anyone know more foods you can eat..or can anyone send me a menu please…good news i have been on the diet for 3 days and lost 6 pounds…bad news i have been eating the SAME thing everyday


Try and eat some other fruits and have some chicken. Chicken doesn’t have calories, so it wont effect the diet as long as you don’t fry it bake it and if you can don’t add sauce and/or dressing to the mixture. I still don’t think its right. Remember that you shouldn’t do this because of how someone else feels but how you feel.


Lean white meat chicken contains very little fat, but it most definitely contains calories. I used this diet many years ago, and it worked. I consumed about 1200 calories/day, and still lost weight. I am going to try it again very soon!


I have not seen any true grapefruit diet on the internet in over 7 years

It was given to me by a friend . it included a list of vegetables as long as your arm on what you can eat and a sizable list of ones you cant eat. Today’s sites that have the GF diet some say you cant have something and on another it says you can.U must eliminate all caffiene. and contrary to what this asswipe site says you dont count calories. and you dont have a protein shortage.


unfortunely i dont remember and can no longer find the original diet.
the best I can tell you is mainly leafy greens such as spinach and green leaf or romaine lettuce, parsley, cilantro. I have also found that carrots and tomatoes do not reduce the effectiveness of the diet. avoid starchy vegetables ( ie. potatoes and rice) and pasta like the plague.do not use diet/low fat dressings. there will be carbs in your dressing but you want to stay at or below 2g/serv. tho u may eat 1-2 serving per meal with 1-2 serving of salad. you could eliminate those by making you own low carb dressing.

carbs hide in the least suspecting places. ie some sausages, hot dogs, some salad dressing are high in carbs. even though some of the diets say you can have these thing watch the carbs in them
generally speak your half serving of grapefuit contains 10g carbs so that there is the 30. I have noticed that the more of the accepted vegetables (salad ) that you eat the more success. If you have no or limited success recheck what you are consuming. I figured out one time that cough drops that i was taking while on diet contained 15 carbs of sugar. OUCH!!!! I have never exercised on this diet.
bill thebestrealestateguy @


Vicki;–are you eating the grapefruit BEFORE your regular meal? Are you walking daily with your pals and still doing a lot of exercise? Try the PINK grapefruit and see what happens–good luck

  Not getting any result.
Vicki Hunter (Verified User)

Is there any reason why this diet wouldn’t work if followed to the “T”? I’ve been on it for almost 4 weeks now and have lost NOTHING yet my girlfriend has lost almost 30 lbs. What gives? I’ve followed it exact and have no weight loss and she has even cheated and still lost weight? So, does this work for everyone or am I just the first it doesn’t work for? HELP I’m really commited and want to lose weight!

patty gains

i have been on a diet for 89 days and lost 21 lbs. but i do the military diet. and you can eat a lot of different foods, as long as you keep calories down to 900 or below, and be sure to take your omega 3 pills it helps a lot

Need to loose 10 lbs

i really need to loose a lot of weight. my husband doesn’t know who I amanymore. the fat lady next to him in bed. i hope that this works. i just had a full masectomy and the only thing left is for me to loose 100 pounds plus. thanks for the info


I don’t think that you need to loose weight this way, there are other ways…. loosing 10 pounds in 2 weeks is terrible, and it ruins your body, even if the effect of the fruit looks good. Don’t put yourself through this because of what others think, but of what you think of yourself.