NSF Certified for Sport
TRU NIAGEN delivers 300mg of nicotinamide riboside (the patented NIAGEN form) per vegetarian capsule, taken once daily as an NAD+ precursor. Unusually for this category, it's NSF Certified for Sport — every batch screened against 280+ banned substances. £49.95 on Amazon UK, 4.1 from 1,400 reviews.
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