Phenylalanine is an amino acid that your body uses to make important molecules. This article reviews phenylalanine benefits, side effects, and sources.

Phenylalanine is an essential amino acid that carries out many important functions in the human body. The two types of phenylalanine are L-form and D-form. This article describes what ...

D-phenylalanine: This is the synthetic form of L-phenylalanine. It has similar uses to L-phenylalanine, although scientists don't yet know if it has the same effects on the body as L-phenylalanine.

Question: What is phenylalanine, and how does it relate to phenylketonuria? When I eat anything with phenylalanine in it, I get very irritated. I have found it in products such as mouthwash, gum an… ...

The serum phenylalanine levels were determined by the fluorimetric method described by McCaman and Robins. 9 For these studies proteins were precipitated from 25 microliters of serum with an equal ...

Phenylalanine is one of the essential amino acids that occurs in proteins. Most people can ingest this amino acid without problems, but there is a small number of individuals who suffer from a ...

Phenylketonuria (PKU) is characterized by increased levels of phenylalanine in the blood and progressive mental retardation. Now, phenylalanine is shown to form toxic amyloid fibrils at high ...

Tyrosine is a supplement that may help improve alertness, attention, and focus. Depending on the dose, it may help boost physical and mental performance. But, not all research is conclusive, and ...

Findings showed a mean blood phenylalanine reduction of 63% in patients treated with sepiapterin. Among participants with classical PKU, the mean percent phenylalanine reduction was 69%.

Tyrosine is an amino acid, a building block of protein, which is important to health. It adds to mental sharpness and lowers the risk of depression. Learn about 6 foods that contain tyrosine.

Pegvaliase, a phenylalanine (Phe)-metabolizing enzyme, is currently marketed under the brand name Palynziq ® to reduce blood Phe concentrations in adult patients with PKU who have uncontrolled ...