Doctors say the ideal form of vitamin D comes from the skin when it absorbs sunlight. A dietitian expert weighs-in on the ...
Sweeney is a contributor for TIME. Sweeney is a contributor for TIME. Vitamin D does a lot for your body, supporting strong bones, muscle movement, your immune system, and more. Taking a vitamin D ...
QUESTION: Hi Dr. Zac, am I being hoodwinked into buying vitamin supplements, or do they actually work? I’ve been feeling constantly tired despite getting enough sleep, and I suspect I might be low on ...
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