Doctor insights on:
What Does Vitamin D Do For Your Body
Vitamin D benefits: Vitamin D can help prevent heart disease, diabetes, osteoporosis, & even some cancers. Because many of us can't get enough from the sun, taking a supplement may be a good idea for some. Get your levels checked at your next check-up so you'll know if you need more. (Ref. bhg.com) ...Read more
Active hormone: Hi. Vitamin D per se has no direct effect in the body. Vitamin D is 25-hydroxylated in the liver. 25-hydroxyvitamin D is converted to the active hormone, calcitriol, in a tightly regulated step in the kidneys. Calcitriol is the active agent. It regulates gene expression in target tissues (gut, bone, muscle, etc). Calcitriol helps with calcium homeostasis, bone & muscle health, balance, etc. ...Read more
D does many things!: Vitamin d3 is quite essential for many things. The skin will make this on exposure to sunlight, but most people still need it as a supplement. It is necessary to absorb calcium from the GI tract, and prevent osteoporosis. But it bolsters the immune system, helps prevent prostate, breast, and colon cancers, and heart disease as well. ...Read more
Its made inside: Sun exposure is an easy, reliable way for most people to get vitamin d. Exposure of the hands, face, arms, and legs to sunlight two to three times a week for about one-fourth of the time it would take to develop a mild sunburn will cause the skin to produce enough vitamin d. The necessary exposure time varies with age, skin type, season, time of day, etc. Still, vitamin d deficiency is very common. ...Read moreSee 1 more doctor answer
VIT D: Is made in the skin and the light spectrum needed is best between noon and three pm daily for 15-20 minutes -without sunscreen. Sunscreen blocks vit d synthesis by 95%. Staying indoors and not being in sun between 10 am and 4 pm reduces our exposure. As said before...Poor diet and chronic illnesses ..And living above the 34th parallel all contribute.Serum levels are optimal at 50-70. ...Read moreSee 2 more doctor answers
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