Vitamins and minerals. Harvard T.H. Chan School of Public Health. B Vitamins. Harvard T.H. Chan School of Public Health. Vitamin C. Albahrani AA, Greaves RF. Fat-soluble vitamins: Clinical indications ...
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The study also showed that taking iron on an empty stomach and with an ascorbic acid (vitamin C) supplement improved absorption. However, other studies have found no difference in absorption between ...