„However, prolonged intake of a vegan diet with negligible taurine content leads to a decline of only ∼20% in circulating taurine in young healthy individuals (

„However, prolonged intake of a vegan diet with negligible taurine content leads to a decline of only ∼20% in circulating taurine in young healthy individuals (6, 7), suggesting that the ∼80% decrease observed in older people by Singh et al. at least partly reflects a loss of capacity for endogenous synthesis“ See https://www.science.org/doi/10.1126/science.adi3025 https://www.science.org/doi/10.1126/science.adi3025