3d illustration
acid
aid
amino
amino acid
antidepressant
anxiolytic
atoms
biochemistry
biomolecule
c11h12n2o2
carbon
chemical
chemistry
compound
dietary
essential
essential amino acid
food
formula
health
hydrogen
molecular
molecule
nitrogen
organic
oxygen
protein
protein biosynthesis
serotonin
skeletal
sleep
structure
supplement
trp
tryptophan