We break down complete vs. incomplete proteins and what foods to eat for each.

What Is a Complete Protein?

Protein is made of individual amino acids, the building blocks of the nutrient.

Three salmon fillets—a complete protein—on a circular wooden cutting board with lemon slices next to them.

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There are 20 total amino acids, 11 of which the body can produce on its own.

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Complete vs.

Incomplete Proteins

While complete proteins contain all nine essential amino acids, incomplete proteins only contain a few.

By eating complete protein foods, you get all nine in one go.

So, what to eat?

Some common plant-based complete proteins include:

Should Vegans Combine Incomplete Proteins?

There is some debate among experts over how best to accomplish this.

(Most plant-based eaters follow this method and show no symptoms of protein deficiencies.)

Others suggest eating complementary incomplete proteins, combining to form a complete protein within the same meal.

How Can Vegetarians Combine Protein?

Animal-based protein isn’t the only option out there!

Healthy options include:

How Much Protein Per Day Should We Eat?

However, its important not to get too bogged down by details.

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MedlinePlus,Dietary proteins.Accessed March 3, 2023.

Implications for daily protein distribution.J Int Soc Sports Nutr.

2018;15:10. doi:10.1186/s12970-018-0215-1

Harvard Medical School.