Phenylalanine

Testing for phenylalanine levels can be particularly important for individuals with metabolic disorders like phenylketonuria (PKU), where phenylalanine processing is impaired. It’s also beneficial for people experiencing symptoms like fatigue, depression, or skin disorders, as phenylalanine is crucial for neurotransmitter production and skin health.

• Depression and mood changes
• Fatigue and lethargy
• Memory problems and cognitive impairment
• Skin disorders, such as eczema
• Decreased alertness

Phenylalanine is found in high-protein foods like beef, poultry, pork, and fish. Dairy products, eggs, and soy products also contain significant amounts. For plant-based diets, nuts, seeds, and legumes are good sources, though the concentration is typically lower than in animal proteins.

Phenylalanine supplementation can be beneficial in boosting mood and cognitive function due to its role in neurotransmitter synthesis. It can aid in treating conditions like depression and Parkinson’s disease. Phenylalanine is also used in managing skin conditions like vitiligo.