Published
August 01, 2025
Summary
What did CL's tests of nutrition bars find?
We independently purchased (online or in stores), tested, and compared bars popular among ConsumerLab members, including products from Aloha, Barebells, Clif Bar, GoMacro, David, IQ Bar, Kind, Larabar, Kirkland (Costco), Perfect Bar, Pure Protein, Quest, and RxBar. Our laboratory tests showed that each nutrition bar contained its listed amount of protein and fiber, and those that claimed to be gluten-free, were. However, several products failed to live up to claims regarding fats (one had an extra 8 grams — most of which were saturated), carbohydrates (one had an extra 7 grams), and sugar alcohols (one had more than 75% than listed). These products were NOT APPROVED. High cost was not found to be an indicator of high quality (see What CL Found, our Results table, and How Products Were Evaluated). 
Top Picks:
Among the products that passed our tests and were Approved, we selected Top Picks representing the best combination of quality, taste, and value. Top Picks were chosen for High Protein Bars, Energy Bars, and Nut Bars.
Products tested in 2025
+— 8 sources
In addition the results of its expert testing, ConsumerLab uses only high-quality, evidence based, information sources. These sources include peer-reviewed studies and information from agencies such as the FDA and USDA, and the National Academy of Medicine. On evolving topics, studies from pre-print journals may be sourced. All of our content is reviewed by medical doctors and doctoral-level experts in pharmacology, toxicology, and chemistry. We continually update and medically review our information to keep our content trustworthy, accurate, and reliable. The following sources are referenced in this article:
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