- Tessari P, Lante A, Mosca G. Essential amino acids: master regulators of nutrition and environmental footprint? Sci Rep. 2016;6(1):26074.
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- Phenylalanine. https://pubchem.ncbi.nlm.nih.gov/compound/L-phenylalanine
- Phenylalanine.https://pubchem.ncbi.nlm.nih.gov/compound/L-valine
- Threonine.https://pubchem.ncbi.nlm.nih.gov/compound/L-threonine
- Tryptophan.https://pubchem.ncbi.nlm.nih.gov/compound/L-tryptophan
- Methionine.https://pubchem.ncbi.nlm.nih.gov/compound/L-methionine
- Leucine.https://pubchem.ncbi.nlm.nih.gov/compound/L-leucine
- Iso-Leucine.https://pubchem.ncbi.nlm.nih.gov/compound/l-isoleucine
- Lysine.https://pubchem.ncbi.nlm.nih.gov/compound/L-lysine
- Histidine.https://pubchem.ncbi.nlm.nih.gov/compound/L-histidine