Too Much Vitamin A May Lead to Weak and Fracture Bones
A new study, published in the Journal of Endocrinology, suggests that excessive consumption of vitamin A may lead to the higher risk of weak and fracture bones.
In the study, a team of researchers from Sahlgrenska Academy at the University of Gothenburg investigated the influence of vitamin A doses equivalent to doses consumed by people taking supplements during long-time periods.
Dr Ulf Lerner, the lead researcher, comments: “Previous studies in rodents have shown that vitamin A decreases bone thickness but these studies were performed with very high doses of vitamin A, over a short period of time. In our study, we have shown that much lower concentrations of vitamin A, a range more relevant for humans, still decreases rodent bone thickness and strength.”
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