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In the News
Real reporting on products that passed — and products that failed — independent lab testing.
FDA Issues Warning Letters to 5 Supplement Companies Over Undisclosed Drug Ingredients
Pre-Workout & Weight Loss Supplements
In March 2026, the FDA issued warning letters to five supplement manufacturers after testing revealed undisclosed pharmaceutical compounds — including a novel stimulant analog and a diuretic — in pre-workout and weight loss products. None of the ingredients appeared on product labels.
ConsumerLab 2026 Protein Powder Review: 1 in 4 Products Fail Label Accuracy
Protein Powder Supplements
ConsumerLab's 2026 annual protein powder review tested 38 products and found that nearly one in four failed label accuracy standards — either delivering significantly less protein than claimed or containing elevated levels of heavy metals including lead and cadmium.
NSF Certified for Sport Products Maintain 99% Pass Rate in 2025 Annual Audit
NSF Certified for Sport Products
NSF International's 2025 annual audit of its Certified for Sport program found a 99% pass rate across re-tested products — confirming that third-party certification remains the most reliable predictor of label accuracy and banned-substance freedom in the sports supplement category.
Senate Subcommittee Report Finds Melatonin Gummies Contain Up to 347% of Labeled Dose
Melatonin Gummies
A Senate HELP Committee investigation released in April 2026 found that popular melatonin gummy products contained between 74% and 347% of their labeled dose. The wide variance raises particular concern for children's products, where dosing accuracy is critical.
Informed Sport Certified Brands Show Zero Banned Substance Violations in 2025
Informed Sport Certified Products
Informed Sport's 2025 program report confirmed zero banned substance violations among its certified brands — a record maintained through batch-level testing of every production run before products reach consumers. The program now covers over 3,200 certified products globally.
FTC Action: Major Probiotic Brand Settles Over Unsubstantiated Health Claims
Probiotic Supplements
The FTC reached a $12 million settlement with a major probiotic brand in May 2026 after finding that advertised health claims — including immune support and digestive health benefits — were not supported by competent and reliable scientific evidence. Independent lab testing also found CFU counts below labeled amounts.
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