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They write: The risk was highest in women with a combined high intake of both vitamins, exhibiting an almost 50% increased risk of hip fracture compared with women with a low intake of both vitamins. However, they also explain that, Among women in the medium intake categories for both vitamins, risk was not significantly elevated. The scientists also note that higher levels of the B vitamins were associated with supplements, not dietary intake

There is some evidence that riboflavin supplementation may lower homocysteine and blood pressure in individuals with a certain genetic predisposition

Our body manufactures tryptophan naturally, and its a big part of what helps you fall asleep at night

Dig Dis Sci 2014