Protein
derived from diet is broken down into amino
acids, and the body then re-constitutes
these amino acids into the specific proteins
needed.
19 out of the 28 known amino acids,
the body can manufacture.
The liver manufactures about 80% of these
amino acids, but the remaining 20% of such
amino acids must be,supplied directly by
diet, and these amino acids are referred
to as the essential amino acids.
These essential
amino acids include histidine, isoleucine,
threonine, leucine, lysine, methionine, phenylalanine,
tryptophan, and valine. |