Topic Overview

Protein is made of building blocks called amino acids. Although the human body can make some of these amino acids, nine of them (the essential amino acids) must be obtained from food. Soy foods and animal sources of protein (milk, eggs, meat, poultry, fish, and seafood) contain all the essential amino acids in the amounts our bodies need.

Most plant foods contain some of the essential amino acids in varying amounts. Beans have some amino acids, and grains have other amino acids. Eating these different types of food throughout the day will provide your body with adequate protein.

Foods that contain protein

  • Lean meat, poultry, or fish. A cooked serving is 75 grams (2½ ounces). (75 grams is about the size and thickness of a deck of cards.) You can use your hand to judge other portion sizes.
  • Protein isn't just found in meat. If you are a vegetarian or just looking for alternatives to meat, the following are equal to approximately 75 grams of meat:
    • ¾ cup (175 mL) cooked beans, peas, or lentils
    • ¾ cup (175 mL) tofu
    • ¼ cup (60 mL) nuts or seeds
    • ¾ cup (175 mL) hummus
    • 2 eggs
    • 2 Tbsp (30 mL) peanut butter or other nut or seed butter

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ByHealthwise Staff
Primary Medical Reviewer Sarah A. Marshall, MD - Family Medicine
Brian O'Brien, MD, FRCPC - Internal Medicine
Kathleen Romito, MD - Family Medicine
Adam Husney, MD - Family Medicine
Elizabeth T. Russo, MD - Internal Medicine
Specialist Medical Reviewer Rhonda O'Brien, MS, RD, CDE - Certified Diabetes Educator

Current as ofMay 4, 2017