7 Signs You Might Need a Supplement

You could be deficient in: niacin

It’s found in: meat, fish, eggs, nuts, green veggies, and enriched breads and cerals

Here’s the deal: Pellagra, or niacin deficiency, can cause serious and rather unappealing side effects. Those range from bodily lesions that worsen in direct sunlight to gastrointestinal symptoms like constipation, diarrhea, nausea, and vomiting. “Niacin plays some major roles in helping our bodies function properly,” says Kristine Arthur, M.D., an internist at Orange Coast Memorial Medical Center in Fountain Valley, California. “It can boost good cholesterol and lower bad cholesterol, help reduce hardening of the arteries, and produces certain hormones in the adrenal glands that help remove harmful chemicals from the liver.”

Recommended daily dosage (through diet and/or supplement): 14 to 18 milligrams


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