What are complementary foods?

Complementary foods refer to the combination of two incomplete proteins that, when eaten together, provide all the essential amino acids needed for a complete protein. In many plant-based diets, proteins derived from plants may lack one or more essential amino acids. However, by pairing them strategically with other plant-based proteins, it is possible to achieve a nutritious profile that delivers all the necessary amino acids for the body’s requirements.

For example, beans are high in lysine but low in methionine, while rice is low in lysine but high in methionine. Consuming these two foods together allows individuals to benefit from a complete protein source. This is particularly important for vegetarians and vegans, who may need to be more mindful about their protein combinations for optimal nutrition.

The other options do not accurately capture the definition of complementary foods. Foods high in sugars, those that balance vitamins and minerals, or varieties of fruits and vegetables do not specifically relate to the concept of completing protein profiles through complementary sources. Hence, the focus on food combinations that enhance protein completeness is what makes this answer the most appropriate.