Amino Acids 
Building blocks that make up proteins. In the body the liver produces 80%
of the amino acids needed, the other 20% must be obtained from dietary sources.

These 10 Essential Amino Acids must be obtained from the diet.

The remaining 70 Amino Acids are made by the body so considered non essential, since they are not obtained from the diet. Important none the less and at times critical for certain processes to occur