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Nutrition 101: Healthy Protein

ID

FCS-149NP

Authors as Published

Authored by Emma Todoroff, Associate Initiative Leader for Health and Well-being, Virginia Tech, and Sarah Supplee, Graduate Assistant, Virginia Tech

Why Protein?

Protein is one of the five main food groups (fruit, vegetables, dairy, grains, and protein) and one of three macronutrients (fats, protein, and carbohydrates) that your body uses for energy everyday. Protein is important because your body uses it as building blocks for muscle, cartilage, bone, skin, and blood cells. Proteins are also building blocks for enzymes, hormones, and vitamins that your body needs to function.

Protein supplies your body with needed energy. 1 gram protein = 4 calories

Types of Protein Foods

Proteins are made up of amino acids. Your body can make some amino acids on its own, but nine amino acids only come from the food you eat. The nine amino acids that must be consumed in your food are called essential amino acids. Protein foods fall into three categories based on whether they contain the nine essential amino acids:

Incomplete Protein

  • Do not contain all 9 essential amino acids.
  • OR contain all 9 essential amino acids but not in a sufficient amount
  • Includes plant-based options: beans, lentils, peas, nuts, and seeds

Complete Protein

  • Contain all 9 essential amino acids.
  • Includes animal-based and plant-based options: meat, poultry, seafood, eggs, dairy, tofu, soybeans, and other soy products

Complementary Protein

  • Two or more incomplete proteins that, when eaten together, contain all 9 essential amino acids. Beans and rice are a common example.
  • Combinations include:
  • Beans + grains, nuts, or seeds
  • Vegetables + grains, nuts, or seeds
  • Corn + legumes

Plan Your Meals

Use MyPlate as a guide to incorporate protein into your meals. About one-quarter of your plate should contain a protein food during each meal.

A diagram of a plate divided into four sections labeled 'Fruits,' 'Vegetables,' 'Grains,' and 'Protein.' The 'Vegetables' and 'Grains' sections are slightly larger than the 'Fruits' and 'Protein' sections. A smaller circle labeled 'Dairy' is positioned to the top right of the plate. A fork is placed to the left of the plate.

Think about portion size when adding protein to your plate. The pictures below show examples of lean protein foods you can incorporate when building your plate.

Illustration of a piece of fish.
6 oz fish = 42g protein, 12 g fat
An illustration of a piece of red meat on a white plate.
4 oz lean strip steak = 28g protein, 20g fat
An illustration of a bowl of black beans in a white bowl.
½ cup of black beans = 7g protein, 2g fat

Healthy Habits

  • Plan meals with a variety of proteins to meet essential amino acid needs.
  • Choose lean proteins like chicken, fish, and lean beef cuts like sirloin and top round.
  • Incorporate plant proteins into your meals or snacks like nuts, hummus, or nut butters.

The amount of protein you should consume each day depends on your age, sex, height, weight, activity level, and other nutritional needs. Find the right amount of protein for you by getting your MyPlate Plan.

Scan the QR code to create your customized plan or access MyPlate Plan at www.myplate.gov/myplate-plan.

QR code to www.myplate.gov/myplate-plan

Contact your local extension office to learn which programs are being offered in your area.

Find your local office at ext.vt.edu/offices.html or scan the QR code.

QR code to ext.vt.edu/offices.html

Virginia Cooperative Extension materials are available for public use, reprint, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.

Virginia Cooperative Extension is a partnership of Virginia Tech, Virginia State University, the U.S. Department of Agriculture (USDA), and local governments, and is an equal opportunity employer. For the full non-discrimination statement, please visit ext.vt.edu/accessibility

Publication Date

August 28, 2025