Which of the following foods 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 foods is an incomplete protein?

Explanation:
Proteins are made of amino acids, and a complete protein provides all nine essential amino acids in adequate amounts while an incomplete protein is missing one or more of those essential amino acids. Lentils supply many amino acids but are low in methionine, so they’re incomplete on their own. In contrast, eggs and yogurt are animal proteins that provide all essential amino acids, and soybeans are considered a complete plant protein. Pairing lentils with grains (like rice) can balance the amino acids to form a complete protein. That’s why lentils are the incomplete option.

Proteins are made of amino acids, and a complete protein provides all nine essential amino acids in adequate amounts while an incomplete protein is missing one or more of those essential amino acids. Lentils supply many amino acids but are low in methionine, so they’re incomplete on their own. In contrast, eggs and yogurt are animal proteins that provide all essential amino acids, and soybeans are considered a complete plant protein. Pairing lentils with grains (like rice) can balance the amino acids to form a complete protein. That’s why lentils are the incomplete option.

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