Conditional Amino Acids

Arginine

Conditionally essential amino acid; precursor for creatine and nitric oxide synthesis

Citrulline

Non-protein amino acid that contributes to arginine and nitric oxide pathway context

Glycine

Nonessential amino acid; inhibitory neurotransmitter; supports sleep, gut barrier repair, and glutathione production

Tyrosine

Dopamine and norepinephrine precursor; LAT1 competition with LNAAs