L-Phenylalanine – An Essential Amino Acid | MyMineralMix
L-Phenylalanine – An Essential Amino Acid
L-Phenylalanine (2-amino-3-phenylpropionic acid; abbreviation: Phe) is an aromatic amino acid with a polar side chain. This essential amino acid was first isolated by chemist Ernst Schulze from lupins in 1881. As a proteinogenic amino acid, L-Phenylalanine makes up about 4-5% of the proteins in the human body. Thus, it is widespread in living nature and in foods. Since L-Phenylalanine cannot be produced by the body itself, it must be obtained through the diet.
Functions of L-Phenylalanine
L-Phenylalanine serves several important functions in the body:
- Protein building block: L-Phenylalanine is an essential component of almost all endogenous proteins.
- Precursor of L-Tyrosine: About 75% of ingested L-Phenylalanine is used to synthesize L-Tyrosine. L-Tyrosine is important for the production of catecholamines such as dopamine and norepinephrine.
- Conversion into fats and glucose: When needed, L-Phenylalanine can be converted into fats or glucose, which qualifies it as a gluco- and ketoplastic amino acid.
Good to know!
L-Phenylalanine is essential and must be consumed regularly through the diet. Due to its role as a precursor to L-Tyrosine, it is crucial for the production of neurotransmitters and overall physical function. A balanced diet can ensure that enough L-Phenylalanine is available to meet the daily requirement.
Sources of L-Phenylalanine
The best natural sources of L-Phenylalanine include:
- Meat
- Fish
- Dairy products
- Soybean sprouts
- Nuts and seeds
- Legumes
By consuming these foods, you can ensure that you include sufficient L-Phenylalanine in your diet.
Conclusion
L-Phenylalanine is an essential amino acid that plays a key role in the body, especially in protein synthesis and the production of important neurotransmitters. Adequate intake of this amino acid is vital for maintaining optimal physical and mental health. Learn more about the benefits of L-Phenylalanine and incorporate this amino acid into your nutrition.