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Kimberly Tenner
November 29, 2019

Slimful Review


Perhaps the hardest aspect of losing weight is having to ignore hunger pangs and a rumbling stomach. It would be a lot easier if you could feel full with less food and stay feeling full throughout the day. That’s what Slimful makers promise with this weight loss product.

Advertised as “sinfully delicious,” Slimful is a 90-calorie chew said to satisfy hunger. With Slimful, you’ll be able to resist cravings to overeat, whether by taking a second helping, eating dessert, snacking between meals, or eating late night snacks.

Slimful is available at many retail stores, so you’ve probably had your eye on it for a while. Is it worth it, however?

That’s what I intend to find out.

How Is Slimful Supposed to Work?

Slimful suppresses appetite, so its weight loss power comes from helping you decrease your caloric intake. To lose weight, you’ll need to expend more calories than you take in. Slimful makes it easier to fight the battle at one end.

Slimful is meant to be taken 3 times a day, 4 hours apart. This will help you not only fight off one episode of hunger, but help you eat smaller meals throughout the day.

Of course, all of this depends on whether or not Slimful is effective. To determine this, we need to look at the Slimful formula.

What Ingredients Are in Slimful?

Slimful ingredients differ by flavor, but all use the same core blend of ingredients to suppress appetite.

I’ll highlight each common ingredient in Slimful that has appetite-suppressing properties so you get an idea of how it’s meant to work.


Maltodextrin is a food additive derived from corn. Often used to replace sugar, it supplies high levels of carbohydrates, which spikes insulin production and blood glucose levels. This tells the body to store sugars as fat. While this seems like the last thing you’d want in a weight loss aid, if you consume maltodextrin after a workout, you can replenish your carb stores and use them for energy.

Soy Protein Isolate

Protein is a great way to increase lean muscle mass. With more muscle mass, the body burns fat more efficiently. Soy protein isolate is most commonly used as a food additive, but in Slimful it may improve body composition.

Konjac Flour

Konjac flour is based on konjac root, also known as glucomannan. A powerful dietary fiber, glucomannan suppresses appetite by prolonging feelings of fullness. Glucomannan works by delaying gastric emptying and improving digestion. In a 1984 study, it helped subjects lose an average 5.5-pounds in 2 months [1].

The remaining ingredients in Slimful are mostly food additives and other ingredients included for flavor.

These ingredients aren’t bad, but they’re definitely not strong enough to trigger the kind of weight loss Slimful advertises. The inclusion of maltodextrin also concerns me, since dieters may not know to eat Slimful chews post-workout.

And the formula has other problems. For example, the first ingredient listed in every flavor is sugar. The second is corn syrup. While a little of these don’t hurt, they seem to be the main ingredients in Slimful. While Slimful only has 90 calories per chew, think about what you’re getting with those calories.

Slimful also contains palm kernel oil, which is high in saturated fats linked to cardiovascular disease, cancer, and loss of bone density.
Slimful may prove somewhat effective, but I don’t see this as the definitive weight loss supplement it is advertised to be.

Will Slimful Cause Side Effects?

One of the good things about Slimful is its lack of side effects. In general, appetite suppressants can sometimes interfere with blood sugar control or cause some minor bloating and gastrointestinal issues.

However, since konjac is included here as a flour, there isn’t too much to worry about. If you do experience some abdominal discomfort, it will likely fade within the first few days of taking Slimful.

Slimful is also gluten-free, so you don’t have to worry about gluten if you have celiac. And 3 of the 4 Slimful flavors are dairy-free, so if you have allergies, you don’t have to restrict yourself too much.

What’s the Best Deal on Slimful?

Another good thing about Slimful is that it’s widely available. You can find Slimful at Wal-Mart, Walgreens, Winn Dixie, Path Mark, and A&P, though you’ll want to check with your local store for availability.

Online, Slimful retails for $8.99 per box of 5 bars, or $20.99 for a 12-bar box. If you eat 3 bars a day, the 5-day box won’t even last you 2 days. The 12-bar box will last you just 4.

You can extend the product’s lifespan by eating fewer Slimful chews per day, but this might compromise effectiveness.

Slimful is competitively-priced compared to similar weight loss chews, but it offers no discount for buying in bulk, as you would here.

Is Slimful Worth a Shot?

Slimful isn’t a bad weight loss supplement, but it isn’t a great one either. It has 1 or 2 interesting ingredients and an intriguing M.O., but you probably won’t get anywhere significant with this product. If you’re looking for a casual weight loss aid, Slimful might be worth a shot, but it won’t do much for a serious dieter.


[1] Walsh, D.E., V. Yaghoubian, A. Behforooz. 1984. Effect of glucomannan on obese patients: a clinical study. International Journal of Obesity: Vol. 8, Issue 4.

Slimful Customer Reviews

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kathy Allen Says:

tried a box. they worked great. they did what they were suppose to do. i felt satisfied for about 3 1/2 hours. I only take one a day when im on the go. try it

June 13, 2013 at 1:47 pm

Frank S. Says:

Slimful worked GREAT, The product did exactly as advertised and I was able to lose over 50 pounds. WHY did they discontinue production of such a GREAT PRODUCT ????

March 3, 2017 at 7:53 pm

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