Question

" vicky is concerned about getting all the essential amino acids from her diet. of the 20 amino acids that are commonly found in living tissues, how many of them are considered essential and cannot be made by a healthy adult"

Answer 1

There are 9 amino acids that cannot be naturally synthesized.

Histidine
Isoleucine
Lysine
Methionine
Phenylalanine
Theronine
Tryptophan
Valine

Hope it helps!