Will Supplements Stop Hair Loss?
Can taking large doses of biotin, a water-soluble B vitamin, help my hair grow thicker and longer? Dr. Katz has the answer.
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Can Reducol Really Lower My Cholesterol Levels?
O, The Oprah Magazine's David L. Katz MD clears up myths about using Reducol to lower cholesterol levels.
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Is It Safe to Mix Supplements That Block Fat and Carbs?
O, The Oprah Magazine columnist Dr. David L. Katz, MD, gives his opinion on fat- and carb-blocking supplements.
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Is It True That Our Bodies Can't Absorb Vitamins Without Fat?
Do we need fat to absorb vitamins? Dr. Katz sorts out the healthy, the harmful, and the hype.
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The Lowdown on Prenatal Vitamins
Get a rundown of the optimal daily amounts of key nutrients you should have in a prenatal vitamin to support a healthy pregnancy and grow a healthy baby.
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What Does the Liver Do?
The various functions of the liver are carried out by cells called hepatocytes, which are responsible for the organ's unique ability to regenerate tissue.
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From the November 2008 issue of O, The Oprah Magazine
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