Vitamin D3 requirements
Recent studies on vitamin D3 have outlined immune enhancements in addition to its known benefits in helping calcium cross from the digestive tracks into the circulation. New studies showed more benefits of vitamin D3 in reducing the incident of breast cancer in women deficient in vitamin D3.
The trend in the USA indicate that in a 2007 study of childbearing women in the Northern U.S. found insufficient vitamin D3 levels in 54% of black women and in 42% of white women.
Other studies have linked Vitamin D3 deficiency to Cancers (colon, prostate etc), depression and weight gain. Further it has been highlighted in the prevention of hypertension, autism, autoimmune disease, depression, flu, neuromuscular diseases, and of course osteoporosis.
These studies show that people with higher levels of vitamin D have a lower risk of the above listed disease.
More researches are still required to substantiate these claims.
Sun is the best form of supplementation (does not have to be in a resort down south). Among the best recommended dietary forms is liquid and the best sources in non-fried food of salmon, tuna, sardines, mackerel and cold pressed olive oil.
Supplementation of Vitamin D3 is individualized.
http://www.webmd.com/osteoporosis/features/the-truth-about-vitamin-d?ecd=wnl_can_041310
Dr. Fateh Srajeldin BSc., ND 416-207-0207
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