Vitamin D is often called "The Sunshine Vitamin" for good reason: it's the only nutrient other than oxygen that can be obtained completely for free. When the skin is exposed to ultraviolet B radiation from the sun, 7-dehydrocholesterol in the skin is converted into … [Read more...]
How much vitamin D do we really need? by Jerry Brainum
Until a few years ago, the only mention of vitamin D was when calcium metabolism was discussed. Vitamin D works with hormones secreted from the parathyroid glands, small glands just above the thyroid gland in the neck, to control calcium uptake and metabolism. But more … [Read more...]