Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Pea and rice protein blends are increasingly used as plant-based protein supplements due to their complementary amino acid profiles, but their direct use to support or treat poor protein digestion is only modestly supported by scientific evidence. Most studies focus on their nutritional quality rather than on their effects on digestion per se. Pea protein is generally well-tolerated and easily digestible, with a digestibility score (PDCAAS) close to that of animal proteins. Rice protein, while lower in lysine, combines well with pea protein to provide a complete amino acid profile. Blending these proteins may enhance the overall digestibility compared to consuming them in isolation, especially for individuals who may have difficulty digesting other plant proteins that contain more antinutritional factors (like soy or wheat proteins). However, there is limited direct clinical evidence showing that pea and rice protein blends improve protein digestion or absorption in people with impaired digestive function. Most available studies report good tolerability and digestibility in healthy adults. Some research suggests that these plant proteins are less likely to cause gastrointestinal discomfort compared to some dairy proteins, which may indirectly benefit those with sensitive digestion. But for individuals with clinically significant protein digestion issues (such as those with pancreatic insufficiency or severe malabsorption), there is insufficient evidence to recommend pea and rice blends as a specific therapeutic intervention. In summary, while these proteins are well-tolerated and digestible, their use for treating "poor protein digestion" is only weakly supported by current scientific data.

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