Medically reviewed and edited by Tod Cooperman, M.D.
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.
Information about MenaQ7, a MK-7 form of vitamin K2, including test results for a supplement containing MenaQ7.
Find out if combination formulas or single-ingredient individual supplements are better and why.
Find out how best to take fat-soluble supplements including CoQ10, curcumin, and vitamins A, D, E, and K, to maximize their absorption.
Learn more about vitamin K2 and the impact on calcium in the heart and arteries, and find out if vitamin K can help with coronary heart disease.
Learn more about vitamin K, including info on interactions with blood thinners such as Coumadin and Jantoven, its effects on bones & impact on clotting.
Find out the best way to take vitamins and minerals and which vitamins and minerals should be taken together or separately for proper absorption. ConsumerLab answer explains the best way to take vitamins and minerals.
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