Doctor insights on:
Uses Of Vitamin D In The Body
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
Is it actually true that artificial tanning lights will promote the production of vitamin d in the body?
Lack of vitamin d can cause pain i back muscles ?And is there some medicine that can increase vitamim d in the body?
Take Vitamin D: Vit d deficiency is very common ; chronic back pain is a common symptom.The best way to increase d is exposure to mid-day sun on bare skin but in most of the us it is impossible to get adequate d from sun in fall ; winter.At that time the best option is to take vit d3; most adults need 5-8000 iu/day to achieve optimal levels.See http://bit.Ly/1ekkvkv ; http://bit.Ly/1dc7vna ; http://bit.Ly/1fnt3ox. ...Read more
Will laying out in sun w proper body exposure for 20 min be just as effective as taking vitamin d pill? How many iu d u get from 20m sun?
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
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
How long do I need to expose my body to the sun (per day) to get vitamin d and sun benefits? Is it fine at any time of the day?
Latitude and time: During summer, you need about 20 min at mid day, longer at other times of day. In winter, or extreme northern latitudes, it takes longer. This is why there is usually a seasonal winter drop in blood vit d levels. ...Read more
Importance of Vit D: It is very important to have vitamin d levels over 30 in most of people because we know that vitd protects us against cardiovascular disease, cancers, cognitive impairment, hypertension, type 2 diabetes, asthma in children. Unfortunately we dont get enough vit d in our diet and do not get enough sun exposure to make vit d in our body. ...Read more
Excreted in urine ;: The government requirement for minimum levels of vit d is too low. This is the level you need to prevent rickets! you need to have your vitamin d level checked in your blood. When you replace vitamin d with supplements you need to take vitamin d3. Excess vit d that is not absorbed will go out in your stool and urine. ...Read more
Enough sunlight: Hi. Humans can make our own vitamin D in the skin upon exposure to UV light in sunlight. This vitamin D (vitamin D3) then has a hydroxyl group (-OH) added on to the 25 position in the liver in an unregulated step, creating 25(OH)vitamin D. This is then converted to the active form, calcitriol by addition of an -OH group at the 1 position in a tightly regulated step (regulated by PTH and FGF-23). ...Read more
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