Which of the following is an incomplete protein?

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Study for the ATI Fundamentals 5 Test. Prepare with flashcards and multiple choice questions, each question comes with explanations and hints. Ace your exam!

Multiple Choice

Which of the following is an incomplete protein?

Explanation:
Proteins vary in quality depending on whether they supply all nine essential amino acids in adequate amounts. Lentils, a legume, are an incomplete protein because they lack sufficient methionine, one of the essential amino acids. Without enough methionine, lentils alone don’t meet the body's needs for all essential amino acids. In contrast, eggs and yogurt come from animal sources and provide a complete amino acid profile, offering all nine essential amino acids. Soybeans are also a complete plant-based protein because they supply all essential amino acids in adequate amounts.

Proteins vary in quality depending on whether they supply all nine essential amino acids in adequate amounts. Lentils, a legume, are an incomplete protein because they lack sufficient methionine, one of the essential amino acids. Without enough methionine, lentils alone don’t meet the body's needs for all essential amino acids. In contrast, eggs and yogurt come from animal sources and provide a complete amino acid profile, offering all nine essential amino acids. Soybeans are also a complete plant-based protein because they supply all essential amino acids in adequate amounts.

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