L-Phenylalanine is an essential amino acid, which means l-phenylalanine must be received from your diet. L-Phenylalanine is connected to L-Tyrosine, another amino acid that is important to healthy body function. L-Phenylalanine has been associated with the neurotransmitters and brain function; elevating the mood. L-Phenylalanine is important to healthy body function and can be found in most foods that contain protein. There are two forms of l-phenylalanine, a L or D form; both are essential to your body.
L-Tyrosine is a conditionally essential amino acid. This means that the body is able to produce sufficient amounts of L-Tyrosine however, in some situations, extra supplementation may be required. L-Tyrosine is created by L-Phenylalanine and can be found in vegetable and animal proteins. L-Tyrosine is connected to the neurotransmitters as well as the hormones. Allowing the body enough amino acids is important to proper body function.