Vitamin D: Sun vs. Supplements

Wednesday, February 15, 2012 by Health Tips

D3Daily Health Tips update for February 15:

Vitamin D’s role in bone health is well known, but scientists continue to look at its role in boosting the immune system, reducing inflammation and supporting muscle health.  How does vitamin D work? It’s created in the “body from exposure to sunlight, traveling through the bloodstream to become a potent hormone that wakes up receptors in your intestines to start absorbing calcium.” Now, research indicates that other organs and muscles are equipped with these receptors as well. 

So how much do you need each day? The recommended daily allowance is 600 IU for everyone under age 70, but this is based on bone health support and assumes minimal sunlight. Many nutritionists and physicians believe that is not enough due to the recently discovered receptors mentioned above; they now recommend 1,000 to 3,000 IU per day.

What’s the best way to get enough vitamin D? Sun exposure is tricky, especially if you live in the northern latitudes. Plus, the need for sunscreen inhibits the amount of vitamin D the body can absorb. Thankfully, dietary supplements can help you get the right amount of vitamin D. Choose the cholecalciferol version (D3), which is more bioavailable than ergocalciferol (D2).


Source:  Runner’s World

 


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