KRK Supplements Fat & Carb Blocker Weight Loss Supplement Review Carb Blocker Updated April, 2024
Final Thoughts

Overall Score 67%

KRK Supplements Fat & Carb Blocker Review

Manufacturer’s Claim

This is a review on KRK Supplements Fat & Carb Blocker, a product designed to prevent weight-gain by blocking fat from depositing into fat cells. The manufacturer claims that this extra-strength product formula will support weight-loss, however, is it the best carb blocker available on the market? We shall be reviewing everything from ingredients to guarantee, helping you make the best purchase choice available.


  • Chromium Polynicotinate – 100 mcg
  • Phaseolus Vulgaris – 200 mcg
  • Chitosan – 200 mcg
  • Guarana – 20mg
  • Coleus Forskohlii Extract – 10mg

This product formula includes 2 popular ingredients known to support weight-loss and often feature in carb blocking products. One ingredient is Chromium Polynicotinate, which increases energy for fat burning among other benefits like improved cardiovascular health and regulated blood sugar levels. The other is Chitosan, a substance rich in fiber that prevents the absorption of fat into the body’s cells. The additional ingredients may improve the product’s ability to deliver optimal results by supporting weight-loss. It is unfortunate to note that the formula is missing a popular ingredient known for its effectiveness in blocking the absorption of carbs; White Kidney Bean. This substance – when combined with the aforementioned weight-loss ingredients – is said to offer optimal carb blocking efficiency. The manufacturer has a GMP certification which is comforting to note.


To take these supplements; adults should consume 1 capsule 3 times daily, 20 minutes before food (breakfast, lunch, dinner). When looking at the dosages, it was a concern to see that the concentration of certain active ingredients is substantially lower than the market standard. For example, this formula includes 200 mcg of Chitosan where competing products have up to 600 mg. Furthermore, the market standard of Chromium is 1000 mcg, rather than the 100 mcg of Chromium Polynicotinate in this product formula. In saying so, this lack of concentration of key ingredients in the product likely makes it less effective in offering weight-loss results when compared to leading brands on the market.


This product can be purchased directly from the manufacturer’s website as well as third-party sites such as Amazon. When buying from the manufacturer’s website, a 90-capsule bottle retails at $8.99 per unit. Although 1 bottle may last the entire month and the price seems appealing, the substantially lower-than-average concentrations of key active ingredients most likely inhibit the effectiveness of this product. Thus, extended use may be required to achieve results and the accumulated costs may become expensive. As there is no package offers available, the long-term investment may only reap poor results at a high cost.


KRK offers a 30-day money-back guarantee for purchases of this product. While this may seem adequate, this policy only applies to products that are unopened – ultimately preventing customers from testing product efficacy for themselves without the risk of losing their money.  This is very concerning as it indicates a lack of confidence in the efficacy of the product. Furthermore, there are several customers who gave this product poor reviews, with the majority of them reporting inefficacy.

KRK Supplements Fat & Carb Blocker Review – The Bottom Line

KRK Supplements Fat & Carb Blocker has a variety of ingredients that – when in the correct dosages – are known to be very effective in providing weight-loss results. However, the formula does not contain enough of the key active ingredients to come close to market standards. While the price may be affordable, the results may be insufficient and end up costing you more in the long-term. While there is a guarantee available, it is limited and does not offer adequate customer support. Furthermore, there are many negative customer reviews complaining that this product is ineffective. In saying so, we do not recommend this product as a viable carb blocker when there are much more high quality and supported products available on the market.

Reviewed & delivered by our panel of experts at Reviewy.