Phenylalanine is an essential amino acid that can cross the blood-brain
barrier which means it can have a direct effect on brain chemistry. Once in
the body, this amino acid can be converted into tyrosine, another amino
acid. This amino acid synthesizes dopamine and norepinephrine, which
promotes alertness. Phenylalanine enhances mood, decreases pain, aids in
memory and learning, and suppresses the appetite.
supplementation can be used to treat arthritis, depression, menstrual
cramps, migraines, obesity, Parkinson’s disease, and schizophrenia. The DL-
form of Phenylalanine can alleviate the symptoms of premenstrual syndrome
(PMS) and various types of chronic pain.
Its nutritional supplements are commonly known for its analgesic and