Excessive intake of vitamin A is postulated to have a detrimental effect on bone by inducing
osteoporosis. This may lead to an increased risk of fracture, particularly in persons who are …

BACKGROUND: Recent studies on the association between vitamin A and fracture risk have
focused on samples with high vitamin A intake. We analyzed a cohort that was more …

Background Excessive intakes of vitamin A have been shown to have adverse skeletal
effects in animals. High vitamin A intake may lead to an increased risk of fracture in humans …

ContextIngestion of toxic amounts of vitamin A affects bone remodeling and can have
adverse skeletal effects in animals. The possibility has been raised that long-term high …

In recent studies from Sweden and the United States, a high vitamin A intake has been
associated with low bone mineral density (BMD) and increased fracture risk. In Sweden and …

VITAMIN A, an essential micronutrient, is provided by animal foods, whereas-carotene and
other carotenoids, known as provitamin A molecules, are derived from plant sources. In …

Background: If osteoporosis is linked with vitamin A (Vit A) A consumption, millions of people
could be affected. Methods: A MEDLINE search was performed with keywords retinol, β …

OBJECTIVE To describe current data evaluating the effect of vitamin A intake on fracture
risk. DATA SOURCES A literature search using MEDLINE (1966–March 2005) was …

Background: Recent observational studies suggest that preformed vitamin A (VA) intakes of
1500–2000 μg/d may increase the risk of osteoporosis and hip fracture. However, few …

Abstract Effects of toxic amounts of vitamin A include skeletal effects; from acute toxic
exposure to chronic high-dose intake of vitamin A, these effects have led experts to …