Medically reviewed and edited by Tod Cooperman, M.D.
Find out if taking vitamin D and fish oil is okay, how it effects absorption, and the best way to take vitamin D to improve absorption. ConsumerLab.com's answer explains.
Learn about the symptoms of vitamin D deficiency, such as soft or weak bones, bone, joint and muscle pain, depression, insomnia, hair loss and others, and find out how much vitamin D you need. ConsumerLab.com's answer explains.
Is it true that vitamins like vitamin K and vitamin A can help prevent you from absorbing too much vitamin D? ConsumerLab.com's answer explains.
Find out if spending too much time outside, especially in the summer, can cause excess vitamin D levels in the body.
Find out how to increase vitamin D blood levels, including a good target range.
Find out how best to take vitamin D supplements, including cautions on overdoses.
Learn more about Marine-D3, a supplement from Marine Essentials, including evidence from clinical studies on aging.
Information on the potential link between vitamin D and prostate cancer, based on a clinical study.
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