Excessive consumption of vitamin A may decrease bone thickness and in turn it will result in weak and fracture-prone bones.
According to a new research undertaken in mice, the sustained intake of vitamin A, equivalent to 4.5-13 times than the human recommended daily allowance (RDA) caused significant weakening of the bones.
Vitamin A plays pivotal roles in growth, vision, immunity and organ function. Proper intake of meat, dairy products and vegetables provide essential nutritional needs.
Dr.Ulf Lerner said,” 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.”
He added, “Overconsumption of vitamin A may be increasing problems as many more people now taken vitamin supplements. An overdose of vitamin A could be increasing the risk of bone weakening disorders in humans but more studies are needed to investigate this. In the majority of cases, a balanced diet is perfectly sufficient to maintain the body’s nutritional needs for Vitamin A.”
The study was published in the Journal of Endocrinology.