Plant proteins might not help older people build or keep muscle as well as animal proteins because they're harder to digest and don't have as much of the important building blocks muscles need.

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Evidence from Studies

Supporting (1)

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The Role of the Anabolic Properties of Plant- versus Animal-Based Protein Sources in Supporting Muscle Mass Maintenance: A Critical Review

Narrative Review

2019 Aug 7

The study says plant proteins aren’t as good as animal proteins for building muscle, especially in older people, because they don’t have as many of the important building blocks and aren’t absorbed as well.

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Source Study

The Role of the Anabolic Properties of Plant- versus Animal-Based Protein Sources in Supporting Muscle Mass Maintenance: A Critical Review

Score: 1

DOI: 10.3390/nu11081825

Similar Assertions

Some plant proteins don't help build muscle as well as animal proteins because they often don't have enough of certain important building-block nutrients, especially lysine and methionine, which are low in foods like wheat, corn, and oats.

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Plant proteins like soy and wheat don’t help build muscle as much right after eating compared to animal proteins like whey or milk, especially in older people when they're not exercising.

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Eating more plant protein—like 60 grams of wheat protein in one meal—might help older adults build muscle just as well as smaller amounts of animal protein, like whey, even though plant proteins aren't as easily used by the body.

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Eating larger amounts of plant protein, like wheat, can build muscle just as effectively as eating animal proteins like whey.

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