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However, excessively concentrated solutions may cause irritation that paradoxically reduces absorption by triggering protective mucus secretion

Approximately 90% of people who follow a vegan or vegetarian diet are deficient in vitamin B12 (The prevalence of cobalamin deficiency among vegetarians assessed by serum vitamin B12: a review of literature)

Oxidative stress occurs when the body has too many unstable molecules called pro-oxidants free radicals and reactive oxygen species (ROS)

Furukawa-Hibi et al ., (2011) have shown that hydrophobic dipeptide leucyl-isoleucine exerts an antidepressant-like effect by inducing BDNF expression 12