*Nutrient Reference Values Ingredients: Bulking agent (microcrystalline cellulose), Choline bitartrate, acidulant (dicalcium phosphate), anti-caking agents (magnesium stearate and silicon dioxide), pyridoxine hydrochloride (Vitamin B6), cyanocobalamin (Vitamin B12), methylcobalamin (Vitamin B12), pteroylmonoglutamic acid (Folic acid)

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Wang S, Guo M, Ouyang H, Li X, Cordon-Cardo C, Kurimasa A et al
Francesco Puppi, recent podium finisher of the Western States 100, wrote a thoughtful piece about the state of drug testing in ultras following the high profile test failure of Joyline Chepngeno in 2025