Energy and nutrition


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Energy and nutrition


The major nutrients—protein, carbohydrate, and fat—provide the body with energy. This energy keeps your heart beating, your brain active, and your muscles working. The energy is measured in calories.

  • Protein has 4 calories per gram. (A gram is a measure of weight. There are 28 grams in 1 ounce.)
  • Carbohydrate has 4 calories per gram.
  • Fat has 9 calories per gram.

Credits


Author Caroline Rea, RN, BS, MS
Editor Susan Van Houten, RN, BSN, MBA
Associate Editor Pat Truman, MATC
Primary Medical Reviewer Ruth Schneider, MPH, RD - Diet and Nutrition
Specialist Medical Reviewer Rhonda O'Brien, MS, RD, CDE - Diabetes Educator
Last Updated February 23, 2007

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Last updated: February 23, 2007
Author: Caroline Rea, RN, BS, MS
Reviewed By: Ruth Schneider, MPH, RD - Diet and Nutrition, Rhonda O'Brien, MS, RD, CDE - Diabetes Educator
Editors: Susan Van Houten, RN, BSN, MBA, Pat Truman, MATC

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