How to Avoid Vitamin D Deficiency When You Work Inside All Day - CNET

Vitamin D is essential for immune function and bone health. Here are five simple but effective ways to get more of it.

Vitamin D has a range of benefits, from strong bones to improved immune function. But it's one of the more elusive vitamins, as it's not found in high concentrations in many foods. And if you work in… [+6511 chars]

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