Which food provides a complete protein source?

Which food provides a complete protein source?

• A. Rice
• B. Beans
• C. Eggs
• D. Bread

Answer: (C)

A complete protein contains all nine essential amino acids in amounts the body needs. Eggs are a complete protein because they provide all of these essential amino acids in the right proportions and are highly digestible, making them a single food source that meets protein needs. Rice and bread are grains and don't supply all essential amino acids in adequate amounts when eaten alone. Beans have many amino acids but are limited in one or more essential ones, though they can complement rice when eaten together. This is why eggs are the best choice for a complete protein among the options.

A complete protein contains all nine essential amino acids in amounts the body needs. Eggs are a complete protein because they provide all of these essential amino acids in the right proportions and are highly digestible, making them a single food source that meets protein needs.

Rice and bread are grains and don't supply all essential amino acids in adequate amounts when eaten alone. Beans have many amino acids but are limited in one or more essential ones, though they can complement rice when eaten together. This is why eggs are the best choice for a complete protein among the options.