Eating cooked lentils and steamed rice together in equal amounts increases how well the body can use methionine, an essential amino acid, but the amount still remains lower than what is found in egg...
Mechanism
Synthesis from 1 study
Lentils and rice together give your body the full set of building blocks it needs to make proteins without wasting methionine. But even together, they still don’t have as much methionine as eggs, so your body can’t build proteins quite as efficiently as it could with animal protein.
Most probable mechanism
When you eat lentils and rice together, the lentils make up for what rice lacks and vice versa, so your body doesn’t waste methionine by burning it for energy. Instead, it uses that methionine to build proteins more efficiently. But even together, they still don’t have enough methionine to match what you get from eggs.
Lentils provide abundant lysine but are low in methionine, while rice provides higher methionine content but is low in lysine.
Consuming lentils and rice together balances the supply of indispensable amino acids, eliminating lysine as the first limiting amino acid and reducing methionine as the primary bottleneck for protein synthesis.
With improved amino acid balance, the liver and tissues reduce the oxidation of indicator amino acids like phenylalanine, indicating that more amino acids are directed toward protein synthesis instead of being broken down for energy.
Methionine metabolic availability increases as a result of reduced catabolism, but remains below the level achieved by complete protein sources like egg-derived amino acids due to insufficient total methionine content in the plant-based combination.
Evidence from Studies
Supporting (1)
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