D PHENYL ALANINE FOR BIOCHEMISTRY
D-phenylalanine has been used with mixed results to treat chronic pain, including pain caused by rheumatoid arthritis. More. D-phenylalanine has been used with mixed results to treat chronic pain , including pain caused by RA.
Phenylalanine can cause intellectual disabilities, brain damage, seizures and other problems in people with PKU . Phenylalanine occurs naturally in many protein-rich foods, such as milk, eggs and meat. Phenylalanine is also sold as a dietary supplement.
Dosage
The high plasma phenylalanine concentrations increase phenylalanine entry into brain and restrict the entry of other large neutral amino acids. In the literature, emphasis has been on high brain phenylalanine as the pathological substrate that causes mental retardation.