Protein Powder Is Under Fire. Experts & Brands React to What It All Means

November 17, 2025

The protein boom is as strong as ever, but recent news created some doubt as protein powder came under fire in the wake of an explosive Consumer Reports expose.

The report, which included results from testing 23 different protein powders and shakes, offered a look into heavy metal contamination across these popular supplements. For all of its tests, the nonprofit organization uses standards set by the California Proposition 65 law to protect consumers from chemicals known to cause cancer, birth defects or other reproductive harm. Athletech News