Slimful Reviews

Community Rating:

3.3 / 5.0

Editor's Rating:

3.8 / 5.0
Brian Green
By Brian Green
April 5, 2013

According to, the secret to losing weight is eating less food. This is easier said than done when hunger kicks in. And that’s where Slimful comes in.

Slimful is a 90-calorie bar that supposedly “satisfies hunger for hours.” Unlike diet bars, which are all “just a snack option,” Slimful is a weight loss tool. It claims to crack down on over serving, over eating, second helpings, between meal snacks, desserts, and late night snacks.

Hopefully, my research answers your questions about Slimful, so you can decide if it’s worth your time and money.

How Is Slimful Supposed to Work?

The first 3 ingredients on Slimful’s label are sugar, corn syrup, and maltodextrin. I was not impressed.

These ingredients get converted into glucose and make blood glucose levels spike. This causes the body to store more glucose as fat, which depletes blood glucose levels, causing sugar cravings to increase.

Fourth ingredient on the list is soy protein isolate. It’s put through a rigorous filtering process, which strips impurities, fat, and carbohydrates from the soybeans. Unfortunately, the process also removes many nutrients. The final product is highly-concentrated soy protein isolate. In large dosages (e.g. 15-20 g), protein reduces hunger and increases satiety.

Konjac flour is another key ingredient. It’s packed with fiber, which expands in the stomach and digestive tract. The result is decreased hunger, better digestion, and reduced cholesterol.

In a clinical study, participants lost 5.5 lbs. in 8 weeks by consuming 1 g konjac every day.[1] Konjac can improve bowel movement regularity and treat constipation as well.

The remaining ingredients are for flavoring, coloring, consistency, and preservation.

Slimful has some soy, but no gluten.

What Are the Different Flavors?

Slimful comes in 4 flavors, which from the names sound very tasty:

• Very Berry
• Honey Bliss
• Cocoa Brownie
• Orange Tangerine

Very Berry, Honey Bliss, and Orange Tangerine are dairy-free, but Cocoa Brownie is not.

The Supplements Facts

Each bar is a serving. Eat the bar and then drink a large glass of water. Drinking water is essential because it causes the fiber to expand and that’s how Slimful fills you up.

Limit your consumption to no more than 3 bars a day, at least 4 hours apart. Most users just eat 1 bar a day. Do not rely solely on Slimful for daily nutrition. It’s also important to eat a healthy, balanced diet.

As you can see, these numbers vary slightly, depending on the flavor you choose:

• Calories: 90
• Total fat: 1-1.5 g
• Cholesterol: 0 mg
• Sodium: 20-90 mg
• Total carbs: 21 g
• Dietary fiber: 2-5 g
• Sugars: 12 g
• Protein: 1 g

Where to Buy Slimful

Slimful is sold in stores and online. Wal-Mart, Winn Dixie, Walgreens, and Rite Aid are just a few participating retail stores. Online, the options are more limited…
• 12-count box – $20.99 – $26.95

All the flavors are sold on this site, but not for the same prices. Shipping costs vary by retailer. One retailer offers free shipping on orders over $25. If you have to pay shipping, the cost is usually between $6 and $7.

The retailers don’t show their return policies online. You have to contact them for more information.
• 5-count box – $8.99
• 12-count box – $20.99

All 4 flavors are available. Standard shipping costs $5.99, unless your order is over $25, then shipping is free. Delivery takes 1-7 business days.

Bulk order sales are final. Items that have been opened or used cannot be returned unless they are damaged or defective. You have 30 days to return unopened items for a full refund.

Do Consumers Like Slimful? has 3 consumer reviews and has 5. There are no other reviews online; not even on the official website.

On, the average rating was 4.3 out of 5 stars. On, it was 3 out of 5 stars.

Only 2 of the users who rated Slimful on actually tried it. They said it curbs hunger and reduces how much food they eat throughout the day. The third non-user wrote about how Slimful only has 2 grams fiber, which he doesn’t think is enough to suppress appetite. But for some reason, he still gave 4 out of 5 stars.

One review on said Slimful reduced hunger, but the texture was weird. Another said the product doesn’t lessen appetite and called it a “glorified candy bar.” Two users liked Slimful and said it satisfies cravings. The fifth user got a horrible stomachache every time she ate a bar.

Most users thought Slimful was too expensive.

The Final Say on Slimful

Slimful doesn’t have as much fiber as other diet bars such as Atkins and Fiber One. It has about 1/3 the amount of protein found in a single egg. With such small fiber and protein dosages, I don’t see how Slimful is as powerful as the company claims. It may curb cravings, but I doubt it dramatically promotes weight loss.

Slimful is low in calories, but high in cheap sugar. It also has many artificial ingredients for flavoring, preservation, and coloring.

Each bar is about $1.75, which doesn’t seem too expensive. But if Slimful causes horrible stomachaches or doesn’t curb cravings, even $1.75 is too much to pay. I recommend buying a higher-quality diet bar or a top-rated, appetite-suppressing weight loss supplement.


[1] Walsh, D, V Yaghoubian, and A Behforooz. “Effect of glucomannan on obese patients: a clinical study.” International Journal of Obesity. 8.4 (1984): 289-93.

User Submitted Reviews

2 out of 3 (67 %) Reviewers Recommend This Product

Community Rating:
3.3 / 5.0


Liz | August 14, 2013

It sucks that someone with jacked up taste buds is basing their opinion on this item solely on the taste alone.
It’s actually really tasty and so far, has curbed my appetite completely!
it’s highly recommended!

Yes, I recommend this product

1 of 1 People Found This Review Helpful

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Lisa | June 25, 2013

I just bought mine yesterday Orange Tangerine and thought I wasn’t going to like it by the look of it! I love it! It did curb my appetite for dinner and I’m a big eater!! Let’s see how long I’ll do on this and if I lose any weight! Will keep you posted!! Everyone is different!

Yes, I recommend this product

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Catherine Rodriguez | June 15, 2013

This was the most horrible tasting bar I ever had. Its terrible. It also Left a bad after taste in my mouth for a long time. I bought both orange tangerine, and cocoa brownie, and say the same for both, they are terrible. I just hope I can get my money back when I return them to the store, opened box and all. I am giving a 1 star rating only because I have to, to comment, but it doesn’t even deserve that.

No, I do not recommend this product

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