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the claim

Combining legumes and grains creates complete proteins

the verdict
SUPPORTED
the evidence backs this
Recorded sources
3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that combining legumes and grains creates complete proteins?

Yes. Combining legumes and grains successfully addresses individual amino acid deficiencies—such as the lack of methionine in legumes—thereby achieving a complete protein profile through mutual complementation.

Verdict: SUPPORTED · 3 sources for, 0 against · Last checked

The analysis

The retrieved literature consistently supports the long-standing nutritional principle that combining plant proteins like legumes and grains compensates for individual amino acid limitations (such as sulfur-containing amino acids in legumes) to achieve a complete protein profile. Multiple papers explicitly discuss the necessity and effectiveness of plant protein complementation.

Evidence for · 3
AMINO ACID COMPOSITION AND NITROGEN-TO-PROTEIN FACTORS FOR GRAIN LEGUMES
1980
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SOSULSKI, F. W. & HOLT, N. W. (1980). AMINO ACID COMPOSITION AND NITROGEN-TO-PROTEIN FACTORS FOR GRAIN LEGUMES. doi.org. https://doi.org/10.4141/cjps80-187

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More for · 2
Anabolic Properties of Mixed Wheat-Legume Pasta Products in Old Rats: Impact on Whole-Body Protein Retention and Skeletal Muscle Protein Synthesis
2020
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Berrazaga, I., Salles, J., Laleg, K., Guillet, C., Patrac, V., Giraudet, C., Bacquer, O. L., Gueugneau, M., Denis, P., Pouyet, C., Pion, A., Sanchez, P., Boirie, Y., Micard, V., & Walrand, S. (2020). Anabolic Properties of Mixed Wheat-Legume Pasta Products in Old Rats: Impact on Whole-Body Protein Retention and Skeletal Muscle Protein Synthesis. doi.org. https://doi.org/10.3390/nu12061596

Dietary Plant-Based Protein Supplements: Sources, Processing, Nutritional Value, and Health Benefits
2025
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Sharma, K., Zhang, W., & Rawdkuen, S. (2025). Dietary Plant-Based Protein Supplements: Sources, Processing, Nutritional Value, and Health Benefits. doi.org. https://doi.org/10.3390/foods14183259

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What does the evidence say?

The retrieved literature consistently supports the long-standing nutritional principle that combining plant proteins like legumes and grains compensates for individual amino acid limitations (such as sulfur-containing amino acids in legumes) to achieve a complete protein profile. Multiple papers explicitly discuss the necessity and effectiveness of plant protein complementation.

Receipt History
first checked04 Aug 2026
judged → SUPPORTED · 8604 Aug 2026
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