This is an amino acid that is a precursor of tyrosine, another amino acid. It is an effective agent against depression and an effective instrument for weight control. Both phenylalanine and tyrosine are turned into dopamine and nor-adrenaline. It increases alertness, fights stress and elevates your mood. It also helps to release the growth hormone.
People who suffer from melanoma should not take phenylalanine, because it promotes this form of cancer. Do not take when using an MAO-inhibitor.