Ten Truths About Metabolism
O, The Oprah Magazine | From the September 2003 issue of O, The Oprah Magazine
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One: What is metabolism? It refers to the amount of energy (calories) your body burns up in a day. Sixty to 70 percent of your daily caloric expenditure goes into your resting metabolic rate (RMR), the energy required to keep your body functioning. People who eat like a horse and never gain weight—said to have fast metabolisms—are born with high RMRs, meaning it takes a lot of food for their particular bodies just to stay alive. |
