These molecules are the building blocks of protein. There are twenty different amino acids that we need for good health.
Our bodies make many of the amino acids we need. But there are nine (called the "essential amino acids") that we must get from other sources. What are some good sources of amino acids? Beef, poultry and fish are all rich in them. So are eggs and diary products. You can get them from nuts and seeds. And, they're in some grains.
What are the benefits of amino acids? Well, amino acids ensure that your body stays healthy. They play a role in things like your immune and digestive systems. They affect growth, energy and sleep. They help you build healthy hair, skin and nails. They affect your hormones, your sexual health and other systems.
For more info about the role amino acids play in your health, talk to your doctor.