The chart below shows the essential and nonessential amino acids content of cooked onion.
|Amino acids||Percent Daily Value (DV) per 100 g|
|Aspartic acid||0.074 g||0.6%|
|Glutamic acid||0.220 g||1.6%|
A branched-chain amino acid (BCAA) is a complex of three essential amino acids leucine (0.048 g), isoleucine (0.048 g) and valine (0.031 g). Cooked onion contains 0.127 grams of BCAAs per every 100 grams.
Creatine can be synthesized in the body from the three common amino acids glycine (0.057 g), arginine (0.183 g) and methionine (0.011 g). Cooked onion contains 0.251 grams of these amino acids per every 100 grams.