Vitamins (B-K) + calcium + fish and cod liver oil: several years. L-citrulline, zinc: 2+ years. Ashwagandha, Boswellia: slightly more than a year. L-DOPA, ni

Vitamins (B-K) + calcium + fish and cod liver oil: several years. L-citrulline, zinc: 2+ years. Ashwagandha, Boswellia: slightly more than a year. L-DOPA, niacin, L-taurine: a few months.