Vitamin D has been shown to reduce the risk of getting the number of cancers. the exact mechanism by which this is done is not known. Several different mechanisms have yet to get involved. Unfortunately, doses that are necessary for the prevention of cancer are very high and therefore toxic to the body. There is therefore driven to find analogues of vitamin D that are less toxic but still useful in the prevention of cancer. The idea that sunlight can help prevent cancer is not new, it has been suggested yet 1930th
vitamin D and breast cancer
Breast cancer is the most common cancer in women. Risk factors include age, country of birth, menarche, nulliparity, age at first childbirth, lactation length, age at menopause, alcohol consumption, and more. To that list we can now add vitamin D. This is especially important because many older women (a group at high risk of breast cancer), a vitamin D deficient.
The evidence for vitamin D is an association with cancer comes from epidemiological studies. It is well demonstrated that the population that is less sun exposure are at higher risk for cancer. Such as less sun exposure leads to less vitamin D, so it is assumed that vitamin D is a cancer preventing substance.
There are trials using vitamin D in the treatment of breast cancer, some of them have shown promise. dose must prevent cancer, unfortunately, lead to very high levels of calcium. High levels of calcium in the body can be very dangerous. There is therefore drive attempt to develop less toxic vitamin D analogs. One such analog is vitamin D5, which is now under investigation.
Vitamin D has also been shown to prevent colon cancer and prostate cancer. evidence for this came from a similar epidemiological studies as well as for breast cancer.
Conclusion
solid evidence exists for vitamin D as cancer prevention hormones.
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