the spectra from livers of three healthy volunteers showed resonances from aliphatic and aromatic amino acids , choline , carnitine , and both saturated and unsaturated fatty acyl chains , and spectra from hearts of six healthy volunteers showed major resonances from phosphocreatine/creatine and taurine and smaller resonances from amino acids and fatty acyl chains .
C0010286
creatine
C0002520
amino acids