Extended Search

 

Extra A Not Acceptable Vitamin A - plentiful in foods like yams, carrots, asparagus, and eggs - has many health benefits as an antioxidant, such as good vision and healthy skin. However, eating too much vitamin A has been shown to have negative side effects. Long-term, regular ingestion of excessive doses of vitamin A may lead to an increased risk for osteoporosis and hip fracture. From 1980 to 1998, the authors of a recent study in the Journal of the American Medical Association examined over 70,000 women between the ages of 34-77. Hip fractures were recorded, excluding severe trauma cases like car accidents in which fracture was unavoidable; fractures were compared to the women's diets regarding vitamin A intake from foods and supplements over the 18 years. Women in the group with the highest overall vitamin A intake from foods and supplements combined were almost 50% more likely to suffer hip fractures than women with the lowest intake. Women with the highest intake of retinol (pure vitamin A) from multivitamins/supplements were approximately 90% more likely to experience hip fracture. A full 21% of the women in the study consumed more than the "tolerable upper limit" of vitamin A, nearly all from supplements. This study offers further evidence that excessive vitamin A consumption, particularly from supplements, may cause osteoporosis in women. The best way to limit your vitamin A intake is to obtain it only from foods, in its beta-carotene form. Besides increasing fracture risk, excessive levels of vitamin A can be toxic and even fatal. Reference: Feskanich D, Singh V, Willett WC, et al. Vitamin A intake and hip fractures among postmenopausal women. Journal of the American Medical Association 2002:287(1), pp. 47-54. To read more about women's health, check out https://www.chiroweb.com/tyh/women.html.

Designed by Dynamic Chiropractic

To report inappropriate ads,click here

Advertising Information | About Us | DC Deals & Events Newsletter | ChiroFind | ChiroPoll | Chiropractic Directory Chiropractic Mailing Lists | Chiropractic Product Showcase | Classified Advertising | DC News Update Newsletter Discussion Forums | Event Calendar | For Chiropractic Students | Link to Us | Meet the Staff Other Sources | Previous Issues | Research Review Newsletter | Site Map | Webcasts [ Home ] [ Contact Us ] Other MPA Media Sites: DynamicChiropractic | DynamicChiropractic Canada | ChiroFind | ToYourHealth | AcupunctureToday MassageToday | ChiropracticResearchReview | SpaTherapy | NutritionalWellness | NaturopathyDigest Policies: Privacy Policy | User Agreement All Rights Reserved, Dynamic Chiropractic, 2011.