GNC Total Lean Phase 2 Carb Controller Weight Loss Supplement Review Carb Blocker Updated September, 2023
Final Thoughts

Overall Score 70%

GNC Total Lean Phase 2 Carb Controller Review

Manufacturer’s Claim

The following review will assess GNC Total Lean Phase 2 Carb Controller to help you make an informed consumer decision. We have analyzed various factors which contribute to its ability to provide effective weight loss results. This will determine whether or not the product lives up to the manufacturer claim that it decreases the caloric impact of carbohydrates for efficient weight loss.


The product formula contains one active ingredient, White Kidney Bean Extract (1000mg). White Kidney Bean Extract is known to inhibit the absorption of carbohydrates by preventing the secretion of alpha-amylase. In doing so, it works to promote weight loss. The fact that this ingredient is patented suggests that it is of a relatively high quality. That said, the manufacturer does not outrightly claim to hold a cGMP certification. These certifications are used to highlight the quality and ethical manufacturing procedures. The lack of one is concerning. On top of this, the product lacks several beneficial ingredients. Chitosan and Chromium are supportive ingredients that improve the main ingredients weight loss properties. These ingredients are found in several competitor products for their role in enhancing product effectiveness. The lack of them, in the product, is a major concern. It is also extremely alarming to note that this formula contains the inactive ingredient Titanium Dioxide. Titanium Dioxide is argued to be potentially carcinogenic to humans.


The manufacturer recommends that you consume two (2) capsules twice daily before a starchy meal. Each serving supplies 1000mg of White Kidney Bean Extract which is in line with many competitor products. That said, the formula lacks several beneficial ingredients which may render the dosage less effective than alternatives.


This product can be purchased online from the manufacturer. A bottle of 120 capsules will cost you $19.99. This price is relatively affordable, however, is likely a result of the questionable formula. The only deal available is a 10% discount that applies to an auto-delivery system. These are often difficult to cancel and customers may be shipped products they no longer want. The saving potential is minimal and not worth the hassle.

Possible Side Effects

The manufacturer states that the product is not intended for children and pregnant or lactating mothers. They also recommend consulting a health practitioner if you are taking medication or have a medical condition. This is likely because of the fact that the formula contains a potentially carcinogenic ingredient. While the manufacturer does not warn users about negative side effects, users should monitor for any adverse reactions to the potentially harmful ingredient.


It is positive to note that product purchases are supported by a 30-day money-back guarantee. The return policy applies to partially used products, therefore, customers who are unhappy with results may be eligible for a refund. The guarantee suggests that the manufacturer is somewhat confident in the product. That said, there are a number of negative customer reviews for this product. Many have claimed that it was ineffective and caused unwanted side effects. This is a major concern.

GNC Total Lean Phase 2 Carb Controller Review – The Bottom Line

This product contains a correctly dosed formula of the beneficial ingredient, White Kidney Bean Extract. The addition of a clear guarantee is an appealing factor. However, the product is claimed to be ineffective by several unhappy customers. Many have reported that it induced negative side effects. Another concern is that the product lacks a few important supportive ingredients found in competitor products. Furthermore, the inclusion of a potentially carcinogenic ingredient is very concerning. For these reasons, we cannot recommend GNC Total Lean Phase 2 Carb Controller as the ideal weight loss supplement.

Reviewed & delivered by our panel of experts at Reviewy.