Dr. Dianne Godar of the U.S. Food and Drug Administration (FDA) has conducted a study indicating that UVA light -- not the UVB light that causes suntans and allows your body to produce vitamin D -- may be responsible for the melanoma epidemic.
What’s more, the UVA light, unlike UVB, can pass through window glass, meaning you can still be exposed to it while you are indoors or in your car.
UVB, on the other hand, appears to be protective against melanoma -- or rather, the vitamin D your body produces in response to UVB radiation is protective. Dr. Godar points out that the melanoma epidemic began long before sunbeds, and that the dramatic melanoma increase occurs primarily in indoor workers, not outdoor workers.
Low vitamin D levels actually predict melanoma, and all-year tans protect against melanoma. Melanoma patients who expose themselves to the sun live longer than those who don't.
|Vitamin D Dose Recommendations
||35 units per pound per day
|Age 5 - 10
|Age 18 - 30
There is no way to know if the above recommendations are correct. The ONLY way to know is to test your blood. You might need 4-5 times the amount recommended above. Ideally your blood level of 25 OH D should be 60ng/ml.