Protein gives us the energy to get up and go—and keep
going. Protein in food is broken down into the 20 amino acids that are
the body’s basic building blocks for growth and energy, and essential
for maintaining cells, tissues, and organs. A lack of protein in our
diet can slow growth, reduce muscle mass, lower immunity, and weaken
the heart and respiratory system. Protein is particularly important for
children, whose bodies are growing and changing daily.