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Science-backed muscle health articles and practical guides from NutriFactx.
FeaturedThe number on the back of your protein bar isn't wrong; it's just outdated. Here's how much protein you actually need, according to the newly updated 2026 federal guidelines, and why most of us have been underestimating it for years.
Featured0.8 grams per kilogram; is that really enough? Leading protein researchers say the official recommendation misses the mark for most active adults.