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9 Common Vitamin Deficiencies and What to Do About Them

There’s a lot of misinformation out there about vitamins, vitamin deficiencies and what you should do if you find out you're deficient in something. To help clear up the confusion, Insider talks about nine common vitamin deficiencies and how to treat them. The deficiencies include iron, vitamins D, B-12, B-2 and K-2, calcium, potassium, magnesium and folate.   While the article’s photo suggests that supplementation is one way to correct a deficiency, as it mentions...