Major Nutrients in Food

Topic Overview

The table below lists the major nutrients (macronutrients), their functions, and their sources in food.

Nutrients in foods
Nutrient Function Sources
Protein Provides energy; builds and repairs body cells; part of various enzymes, hormones, and antibodiesMeat, poultry, fish, eggs, legumes, milk and milk products, vegetables, grains
Carbohydrate Provides energy needed by the brain, nervous system, and red blood cellsBreads, cereal grains, pasta, rice, fruit, vegetables, milk, sugar
Fat Provides energy; carries other fat-soluble nutrients (vitamins); part of cell membranes, membranes around nerves, hormones, bile (for fat digestion)

Meat, poultry, fish, milk and milk products, nuts and seeds, oils, butter, margarine, salad dressing, some candy, some desserts

Related Information

Credits

ByHealthwise Staff
Primary Medical ReviewerRuth Schneider, MPH, RD - Diet and Nutrition
Primary Medical ReviewerAdam Husney, MD - Family Medicine
Specialist Medical ReviewerRhonda O'Brien, MS, RD, CDE - Certified Diabetes Educator
Last RevisedJanuary 14, 2010
By: Healthwise StaffLast Revised: January 14, 2010
Medical Review: Ruth Schneider, MPH, RD - Diet and Nutrition
Adam Husney, MD - Family Medicine
Rhonda O'Brien, MS, RD, CDE - Certified Diabetes Educator

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