Updated: 10/06/2015 - Sponsored by Leptigen

Slendesta Review - Does This Diet Supplement System Work? Are lack of results and scientific evidence deal breakers?

Editor's Review: 2.6 / 5.0

slendesta-product-imageSlendesta uses white potato extract, which is an unusual extract for a diet supplement. Because of the uniqueness of this product, we did an in-depth review for readers that may not be familiar with white potato extract. We looked at the ingredients, side effects, clinical research, customer-service, and any other info we could find on this product. We also scoured the web for customer reviews and compiled what we found into this review to give you the info you need to make an informed decision.

EDITOR'S TIP: Combine Slendesta with a proven fat burner such as Leptigen for better results.

What You Need to Know

Slendesta only lists one ingredient: White Potato Extract. This ingredient supposedly suppresses appetite, allowing you to feel fuller and eat less. Slendesta comes in capsule form, and is convenient enough to take anywhere, even with the busiest of lifestyles.

This product is produced by Kemin, who has been around since 1961, which is an encouraging sign. The company has a great BBB rating, the product has no stimulants so side effects are minimal, and it’s available online from a variety of retailers, but read on…

Lack of Results – Our First Red Flag

Weight loss supplements are designed to help people lose weight, so when they don’t deliver on their primary function, it can be a huge disappointment, and waste of time and money. “Slendesta aims to reduce appetite and minimize caloric intake,” said our research editor. “But we couldn’t find anyone that actually agreed that this product had an effect on their weight loss goals or calorie count.”

“I feel like I just spent money on a placebo,” said one user.

“I don’t see this working, I’m just as hungry as ever, and am not losing any weight,” said another.

Scroll below for one of the best products we’ve seen in 2015.

Scientific Evidence against Slendesta – Another Concern

Another issue that we took with Slendesta is the fact that there was actually scientific data against their product. Not only does the scientific study claim that there was no weight loss benefit to taking White Potato Extract when trying to lose weight, but they even performed a double blind study and put Slendesta up against a placebo. The placebo group ended up losing more weight than the group taking Slendesta, suggesting that Slendesta doesn’t even work as well as a Placebo. “After seeing no results, I researched online and found a study proving that this doesn’t work,” said one disappointed review.

“I bought this product and now I found out that there’s no scientific evidence that white potato extract helps suppress appetite,” said another. Most people coupled this with diet and exercise, but the primary way this helps people lose weight is through the placebo effect. “I lost 5 pounds in one month, I don’t care if it’s the placebo effect, this worked for me,” said one 3 ½-star review.

Our research has proven that whenever a negative aspect of a diet or exercise program exists (lack of results, scientific data against a products claims, taste, cost, etc.) the likelihood of meeting your weight loss goals and keeping the weight off is slim. If Slendesta really doesn’t work as a weight loss supplement, this could make it nearly impossible to lose weight with this product and keep it off permanently.

The Science

The most disappointing thing about Slendesta isn’t the lack of published scientific studies about their ingredient; it’s the plethora of studies directly refuting their weight loss claims and the effectiveness of their products. According to numerous clinical trials, Slendesta provides weight loss by way of the placebo effect. This is the best case scenario with this product: results on par with a placebo. In some studies, the placebo group even outperformed the group taking Slendesta. At DietSpotlight we always look for published data about a product, but when the unbiased studies prove a product’s ineffectiveness, we see major red flags and reason to avoid that product.

The Bottom Line

We like that the makers of Slendesta have been around for over 50 years, so we were excited about this review, but the scientific data directly refuting Slendesta’s weight loss claims mean that we cannot pass this product on as one of our recommended weight loss supplements. We’re also concerned about the lack of results that people see, the missing information about additional ingredients, and the lack of testimonials on the company website.

If you’re interested in finding a safe and effective way to lose weight, we suggest you find a supplement that offers proven weight loss with scientific proof that it works. A product with published trials proving that it’s more effective than a placebo is a great place to start when looking for a weight loss product that offers safe weight loss.

One of our favorite products that we’ve seen so far in 2015 is a product called Leptigen. This revolutionary product contains a proprietary blend of four ingredients that have been proven in scientific trials to speed weight loss by boosting metabolism and targeting fat loss. There have also been no links between Leptigen and negative side effects, which is a great sign that this is a safe way to see steady weight loss.

The makers of Leptigen are currently offering a special trial offer, which is a sign that they’re confident that you’ll see quick results.

Learn More About Leptigen »

(Feel free to scroll below for our previously published full-length Slendesta Review)

Previous Slendesta Review (Updated June 13, 2014):

What You Should Know

Click Here To See Our Highest Rated Review

Slendesta is an appetite suppressant formulated by Kemin Industries. This company was founded in 1961 in Des Moines, Iowa and it is known for making items that are "functional products that deliver maximum efficacy through superior science". Kemin Industries currently markets an extensive catalog of foods, pet foods, nutraceuticals and pharmaceuticals around the world.

Slendesta claims to help suppress your appetite, which will help you lose weight because you will eat smaller portions and skip all those calorie-heavy snacks you might have usually eaten throughout the day. The official Slendesta website claims that most dieters will make up excuses to "cheat on" their diet, and the biggest one is that these dieters are just too hungry all the time. The Slendesta product aims to tackle this specific problem, making it not entirely suitable for all dieter, but incredibly useful within the niche market of "diet cheaters."

List of Ingredients

Slendesta contains: Natural potato extract derived from white potatoes.

We can't find any other ingredients listed.

Product Features

Slendesta is one of the main diet products that Kemin Industries produces. Slendesta is an appetite suppressant that uses potato extract as its main (and, apparently, only) ingredient. Potato extract contains a protein called P12 that is supposed to stimulate the production of a naturally occurring chemical called Cholecystokinin or CCK. CCK is supposed to "trick" your brain into the feeling of being full.

The official website for Slendesta says that there have been numerous clinical studies done on the protein P12 which is the active ingredient in Slendesta. The website claims that these studies, done over 20 week periods, showed that the participants in these studies had visible weight loss over each 4 week visit. There is no data given on where these studies took place or who participated in them, however.

See Our Featured Diet


  • The official Slendesta website goes into great detail about what the main ingredient is and what it does.
  • This product contains no stimulants and should produce no side effects in terms of jittieness or blood pressure risks.


  • Slendesta does not contain any well known ingredients, only white potato extract.
  • There are no testimonials available on the official website.
  • Slendesta doesn't contain a fat burner of any kind.


We like how much information the official Slendesta website has on the main ingredient potato extract. The problem we have with this product is that it is meant to work over a period of almost 6 months and many dieters don't have the motivation to stick with a product that doesn't give them fast results. If you are looking for a long term weight management product, you might consider Slendesta, since it's fairly cheap and all-natural. For those looking to lose weight fast, we highly recommend a product that uses both a fat burner and an appetite suppressant in one dose.

GD Star Rating

3 User Reviews About Slendesta

Leave comments below
  • 1

    can u take slendesta with ur vitamins and other supplements like 5-htp,enzymnes,etc…


  • 2
    patricia cabrera

    im diabetic,im go to the gym. can i use slendesta ?



    is this product safe for type 2 diabetes


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