Does excessive supplemental Vitamin A cause hip fracture in older people?
Most likely, in excessive amounts that are not balanced with the proper amount of Vitamin D. Three peer-reviewed studies published in JAMA, NEJM and Annals of Internal Medicine have now linked excessive amounts of Vitamin A, as retinol, to hip fracture in older people. (Visit Oculair scientific rationale to view abstracts of these three studies.) For this reason, Biosyntrx includes slightly less than the FDA standard RDA of 5000 IU. Biosyntrx multiples contain 4,500 IU of Vitamin A (73% as retinyl palmitate and 27% as beta carotene), which is perfectly balanced with 600 IUs of Vitamin D. Vitamin D deficiency is becoming pandemic due to lack of outdoor time of the elderly and obsessive sunscreen use in the young. Vitamin D deficiency is proving to be a major issue in bone health. The National Academy of Sciences’ Institute of Medicine (IOM) revised its recommended daily intake for vitamin A, as retinol, downward in 2001. The FDA establishes and polices the published RDAs/RDIs on all nut
