Phenylalanine
Overview
Phenylalanine is an essential amino acid that serves as a precursor to tyrosine, which in turn is converted to the catecholamine neurotransmitters dopamine and norepinephrine. Phenylalanine participates in LAT1 competition at the blood-brain barrier along with other large neutral amino acids, and its conversion to tyrosine requires the enzyme phenylalanine hydroxylase. Both dopamine and norepinephrine synthesis pathways rely on cofactors including iron, B6, folate, omega-3s, and BH₄ (tetrahydrobiopterin) to support rate-limiting steps in catecholamine synthesis, making phenylalanine an important component of neurotransmitter production.
Recipes
11 recipes containing this substance
Black Bean & Sweet Potato Vegetable Chilli
A fibre-rich bean and vegetable chilli with warming spices and slow carbohydrates for steady energy and satiety.
Chocolate Quinoa Crisp Clusters
A delicious cereal-to-snack hybrid with satisfying crunch, steady energy, and a low glycemic profile. Perfect for breakfast or anytime snacking.
Ginger Yogurt and Blueberries
A polyphenol-rich breakfast bowl with high fibre, combining ginger, omega-3 nuts, blueberry polyphenols, and probiotic yogurt.
Matcha Mitochondria Smoothie
Mitochondrial energising smoothie rich in polyphenols, magnesium, and antioxidants
Mitochondrial Power Bowl
A nitrate-rich, polyphenol-dense bowl combining leafy greens, beets, berries, nuts, and early harvest olive oil
Rocket Lentil Avocado Midday Salad (Gut-Supporting)
Polyphenol-rich midday salad with quinoa or lentils, vegetables, avocado, and early harvest olive oil
Salmon & Grated Beetroot Toast (with Lemon)
A fast, brain-forward open sandwich combining omega-3 rich salmon, nitrate/polyphenol beetroot, and lemon acidity for a sharp, savoury bite.
Salmon Bowl-pistachio-cacao-nibs
A Mediterranean-style bowl combining salmon, avocado, pistachios, cacao nibs, and early harvest olive oil — rich in omega-3 fats, polyphenols, and fibre.
Savoury Greens & Egg Breakfast Skillet
A warm savoury breakfast skillet with eggs, greens, and slow carbohydrates for steady morning energy.
Turmeric Lentil Dahl
Turmeric- and ginger-spiced lentil dish rich in fibre, folate, and polyphenols
Turmeric Milk
A warming drink combining turmeric (curcumin) with milk/fat for enhanced curcumin absorption
Foods
20 foods containing this substance
Almonds
Vitamin E, plant protein, and healthy fats
Beef
High creatine, CoQ10, heme iron, and complete protein
Black Beans
Legume with polyphenols and protein; optimal soaking conditions detailed
Cashews
Plant protein and zinc source
Chia Seeds
ALA omega-3, fiber, and minerals
Chicken
Complete protein with niacin, zinc, and tryptophan
Chickpeas
Legume providing protein, fiber, folate, magnesium, and B6
Eggs
Complete protein with choline, B vitamins, and phospholipids
Flax Seeds
ALA omega-3 and soluble fiber source
Lentils
Legume rich in protein, fiber, folate, iron, and prebiotics
Milk
Complete protein, nicotinamide riboside, and calcium
Oats
Beta-glucans, tryptophan, and B vitamins for gut and neurotransmitter support
Peanuts
Niacin, resveratrol, and plant protein for NAD+ and mitochondrial support
Quinoa
Pseudograin with complete protein, magnesium, and GABA potential in sourdough
Salmon
Oily fish rich in EPA/DHA, protein, and B vitamins
Sunflower Seeds
Thiamine source and sunflower lecithin precursor
Tempeh
Fermented soy providing probiotics and enhanced nutrient bioavailability
Tofu
Soy-based protein source with isoflavones and choline
Walnuts
ALA omega-3, polyphenols, and ellagitannins for urolithin A production
Yogurt
Fermented dairy providing probiotics and complete protein
Biological Mechanisms and Implications
| Biological Target | Therapeutic Areas | Mechanism of Action |
|---|---|---|
| Neurotransmitter Regulation | Essential amino acid that converts to tyrosine and supports catecholamine synthesis (dopamine, norepinephrine); participates in LAT1 competition at the blood-brain barrier |
References
- Phenylalanine converts to tyrosine and supports catecholamine synthesis; participates in LAT1 competition at the BBB
- Both dopamine and norepinephrine synthesis pathways rely on cofactors including iron, B6, folate, omega-3s, and BH₄ to support rate-limiting steps in catecholamine synthesis Fanet et al. 2021