Updated: 01/12/2018

Pineapple Diet Review - 5 Things You Need to Know


In my never-ending quest to reveal the best diet plan, this week I reviewed the Pineapple Diet. We looked at the restrictions, rules, effectiveness and clinical research. We also read real stories from people who’ve chosen to follow it for weight-loss. Then, we summarized it all to give you the details you need.

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What is the Pineapple Diet?

To begin with, the Pineapple Diet is what’s considered a “mono” diet. That means you eat just one food. There’s no way for a plan like this to supply all the nutrients the body needs, but supporters claim it is an easy way to lose weight in just three to five days. Though we found no singular source of information, there are websites all over the internet offering details.

No one person necessarily created the Pineapple Diet, but credit is sometimes taken by Joann Metzger. According to some reports, she lost upwards of 40 plus pounds in just six weeks with the plan. We like the idea of eating more fruits and it looks like the rules are easy enough, but read on…

Limited Food Choices – “You Can Eat This and This – That’s It!”

Our first concern about the Pineapple Diet is the extreme nature of food restriction. We found one variation that allowed tuna for the four days. “You need a well-rounded diet to promote long-term weight-loss,” explains our Research Editor. “Not only is the plan missing the nutrients the body needs, any loss will be water.”

The journal Obesity (Silver Spring) says, “consuming 500 ml water prior to each main meal leads to greater weight loss than a hypocaloric diet alone in middle-aged and older adults.” Pineapple contains lots of liquid, but it also supplies natural sugars.

This research also mentions hypocaloric, which means reduced or low calorie. The Natural Heart, Lung and Blood Institute offers a bit of advice on how to make the right choices. “When making a food choice, remember to consider vitamins and minerals. Some foods provide most of their calories from sugar and fat but give you few, if any, vitamins and minerals.”

Hunger – “Can I Have More?”

The first day on the Pineapple Diet you eat one whole fruit and nothing more. This supplies about 450 calories and more than 120mg of carbohydrates.

Sugar and water is all this food offers the dieter. It does weigh about two pounds or 32 ounces, but if you consume one cup of cooked vegetables, a serving of protein and a half cup of rice that’s about 15 ounces. Making healthy choices, the total calories hovers at 350. Three meals a day is 1050 calories and 45 ounces with all the nutrients the body needs.

With years of research behind us, we’ve found it’s the small things, like food restriction, that hinder your chance of success. If the Pineapple Diet is too harsh and leads to hunger, the probability of weight regain is high.

The Science – “Are Clinical Studies Supportive?”

There are no clinical studies that link the Pineapple Diet to long-term, successful weight-loss. There’s little doubt if you consume 450 calories a day, you will lose. But, it’s just not sustainable and your nutrient intake suffers greatly. At DietSpotlight, we don’t feel comfortable suggesting an extreme diet like this and not just because the science is not there.

The Bottom Line – Does the Pineapple Diet Work?

Are we at the grocery store right now buying up all the pineapples? Well, we are all for increasing fruit intake, but we are hesitant to suggest this is the way to lose weight. You need protein and fiber to fight hunger and supply what the body needs to recover and stay healthy. Plus, the science isn’t there to say this is the way to go.

Choosing a healthy diet packed with nutrient-rich fruits is a great choice for weight-loss. We suggest adding a clinically tested supplement to the equation to maximize calorie burn.

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Pineapple Diet

What are the ingredients in Pineapple Diet?

Pineapple and other healthy foods.

What are the side effects of Pineapple Diet?

Diarrhea, nausea, vomiting,abdominal pain, heartburn, headaches and insomnia.

How do I know if Pineapple Diet is right for me?

Choosing the right product is the #1 question asked by DietSpotlight readers. We recommend trying any product before buying it and know that finding a product with a sample offer is near impossible - so we created our own product, Burn HD, with scientifically backed ingredients.

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Does Pineapple Diet work?

Results may vary, but you are starting your self on a healthy lifestyle of better food choices.

What is the price of Pineapple Diet?

Price of pineapple at your local market and other healthy foods cost.

Where can I buy Pineapple Diet?

At your local market that sells fruits.

How should I take Pineapple Diet?

During the Pineapple Diet you eat 4.4 pounds of Pineapple over 5 days with other healthy foods.

How do I contact Pineapple Diet customer service?

No customer service provided.

Can I return Pineapple Diet?

Maybe able to return pineapple depending on markets return policy.

What are the most common complaints about Pineapple Diet?

You lose water weight, so you may not see the weight loss.


Previous Pineapple Diet Review (Updated September 20, 2013):

What You Should Know

The Pineapple Diet is known as a fad diet in many weight loss realms. The diet focuses on the nutritional properties of the pineapple as the basis for weight loss and holistic remedy for various health conditions. While there is no official website for the Pineapple Diet, a quick search on the Internet brings up many results with information on this free diet alternative.



Product Features

The Pineapple Diet is one of the least supported diets on the Internet. There are no official websites supporting this method of weight loss, but there are many websites claiming the health benefits of pineapple in general. Pineapple is a fruit that is rich in Vitamin C, thiamine, potassium and manganese. These nutritional benefits are the basis of much of the hype surrounding the Pineapple Diet. Another problem with the Pineapple Diet is the lack of scientific evidence that eating pineapple aids in weight loss. No matter how many websites we searched, there were no testimonials from people having lost a substantial amount of weight on the Pineapple Diet, nor were there any testimonials from people who had followed the diet for more than a few days or weeks. The basis of the Pineapple Diet is simple; eat more pineapple and the weight will fall off. Fad diets like the Pineapple Diet tend to all focus on one ingredient. The Cabbage Soup Diet and the Lemonade Diet are two others that follow the same principle as the Pineapple Diet only with different main ingredients.


  • Pineapple is rich in Vitamin C, thiamine, potassium and manganese.
  • The information on the Pineapple Diet is free.


  • Pineapple is not proven to increase weight loss.
  • There are no testimonials supporting the efficacy of the Pineapple Diet.
  • One ingredient diets tend to be fad diets by nature.


The Pineapple Diet is another diet in a long string of freebie fad diets that simply is not proven to work. The idea that eating pineapple will increase weight loss is not proven and there are no case studies provided to support the use of pineapple exclusively as a part of weight loss. For the dieter who wants to lose weight, eating a healthy, balanced diet rich in all food groups paired with a fat burner and an appetite suppressant is a better option. There is proof that fat burners and appetite suppressants help to reduce overall caloric intake and increase the body's natural metabolism. We support weight loss aids that are backed with strong scientific studies and the Pineapple Diet is not one of these plans.
Summer Banks Dietspotlight Author
About the Author:

Summer Banks, Director of Content at Dietspotlight, has researched over 5000 weight-loss programs, pills, shakes and diet plans. Previously, she managed 15 supplement brands, worked with doctors specializing in weight loss and completed coursework in nutrition at Stanford University. full bio.

16 Pineapple Diet Reviews

  • How much sugar in it?

    what is the sugar count in pineaples?

    • Maribel (Editor)

      Hi Heline! For more ingredient details, please refer to the Pineapple Diet official website for more information.

  • Does it help to loose weight.

    Does drinking pineapple peels that are boiled help in any type of weight lose?

    • Maribel (Editor)

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

  • Needs more information about boiled pineapple peels
    Heline Besem Atong (Verified User)

    Please i will like to know the advantages and disadvantages of consuming liquid from boiled pineapple peels. Does the consumption has age limit or sex limit? Thank you.

    • Maribel (Editor)

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

  • Ordered this diet
    Joan Nelson

    I ordered this diet and have received? Please advise.

    • Maribel (Editor)

      Hi Joan. Please refer to the Pineapple Diet official website for more information.

  • Lovely

    I used the pineapple diet and it did work I lost 65 pounds. If you do it right it works…. 😀

  •  Loved the product.
    annelie (Verified User)

    I have been doing the Beverly Hills diet for many years. My friend just lost 8.6 kilos in ONE WEEK !!! He only had very ripe pineapples everyday. The last time he stayed on it for 17 days and lost 15 kilos. He then followed the Beverly Hills old diet and I promise you I weight him the first day and every week. He has a fantastic will power. However he has to stay on it until the end where they teach you to counteract a meal with a specific fruit the next day otherwise you will pick it all up again.

    • Linda

      Hi Annelie, wow how nice to find someone who also follow the Beverley Hills diet. I was so desparate and 26 March started the Beverley Hills, I did not have the book but googled for the basic diet and started, up until now I have lost 30kg’s, I am a different person. I would like to hear from you. Seems like you can help me alot.

  •  Pineapple diet works
    Ellen (Verified User)

    I did pineapple diet every weekend for a month and I lost bunch of weight. It works for me plus is really easy to follow

  • Lose it gradually

    Well, my friend lost weight by eating pineapple, you dont lose it immediately but gradually.

  • meal suggestion

    I think the reason why fad diets don’t work is too much of one thing gets boring I’m sure if you added pineapple to your diet it may be beneficial but who can eat it every day, if people want to lose weight just get a meal replacement shake and eat more smaller meals and take walks everyday it’s not hard once you lose a few it becomes motivation

    • Genviev

      I am an athlete, who typically train 2 to 3 hours per day, and never had to go on a diet. However, two months ago, I caught a nasty bronchitis which seemed to resist all medical treatments. After a first round of antibiotics, which failed, the bronchitis turned into pneumonia and after 6 weeks, I actually wondered if I would ever recover. A second round of antibiotics didn’t cure me completely and wiped me out with terrible side effects. A friendly cashier at my local grocery store suggested to eat pineapple. After researching online, I found that fresh pineapple contains an enzyme called bromelain which heals colds, flu and respiratory infections. I also found a lot of positive reasons to eat fresh pineapple. The trick is, you obviously cannot eat it canned or processed, due to all the added sugars and preservatives. So I started eating 1 fresh pineapple per day. They are so good, I rapidly became hooked. Easy to cut and prepare, it only takes a minute with a good knife. Easy to eat, pack and take to go and absolutely delicious. Within a week, my health started improving noticeably. I also lost 5 pounds, so there, you have someone who has been eating 1 fresh pineapple per day for a week, and is not likely to stop soon 😉

  •  Really its a good idea for weight lose
    wayne mcmorris (Verified User)

    I Need To LOSE 40 Lbs.I Like The Idea About The PINAPPLE dIET.