Which of the following is a source of incomplete proteins?

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Multiple Choice

Which of the following is a source of incomplete proteins?

Explanation:
Incomplete proteins come from plant-based sources that don’t supply all essential amino acids in the right amounts. Beans are a classic example: they provide good amounts of some amino acids but are relatively low in methionine, so they don’t meet all essential amino acid needs on their own. In contrast, eggs, milk, and yogurt are animal-derived proteins that contain all essential amino acids in sufficient amounts, making them complete proteins. You can pair beans with grains (like rice) to form a complete protein, but by themselves beans represent an incomplete protein source.

Incomplete proteins come from plant-based sources that don’t supply all essential amino acids in the right amounts. Beans are a classic example: they provide good amounts of some amino acids but are relatively low in methionine, so they don’t meet all essential amino acid needs on their own. In contrast, eggs, milk, and yogurt are animal-derived proteins that contain all essential amino acids in sufficient amounts, making them complete proteins. You can pair beans with grains (like rice) to form a complete protein, but by themselves beans represent an incomplete protein source.

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