Answer
Adults can synthesize 12 of the 20 essential amino acids that we need for good nutrition and health the other eight. Isoleucine, leucine, lysine, methionine phenylalanine, threonine tryptophan, and valine; also cysteine and tyrosine.
Work Step by Step
The other ten amino acids are called inessential amino acids not because we do not need them for complete nutrition, but because the body can synthesize them when they are not supplied in the diet.
