Which of the following is a source of complete protein?

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Multiple Choice

Which of the following is a source of complete protein?

Explanation:
A complete protein provides all nine essential amino acids in sufficient amounts. Fish, as an animal protein, delivers high-quality amino acids in the right balance, making it a complete protein and suitable for meeting daily needs. Beans and rice each supply amino acids, but on their own they are not complete because some essential amino acids are limited in each source (beans are lower in methionine; rice is lower in lysine). When eaten together, they can complement each other to form a complete protein, but individually they do not. Vegetable oil is a fat source with negligible protein, so it does not count as a source of complete protein.

A complete protein provides all nine essential amino acids in sufficient amounts. Fish, as an animal protein, delivers high-quality amino acids in the right balance, making it a complete protein and suitable for meeting daily needs. Beans and rice each supply amino acids, but on their own they are not complete because some essential amino acids are limited in each source (beans are lower in methionine; rice is lower in lysine). When eaten together, they can complement each other to form a complete protein, but individually they do not. Vegetable oil is a fat source with negligible protein, so it does not count as a source of complete protein.

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