Collagen plant-based – Possible claims for amino acids Based on the guidelines from, for example, EFSA (European Food Safety Authority), it is possible to praise the amino acids specified below. Amino acid content in mg per serving Glycine 21.5 L-Proline 13 Hydroxyproline 12 L-Alanine 9.5 L-Glutamic acid 9.5 L-Arginine HCl 7.5 L-Aspartic acid 5.5 L-Lysine HCl 3.5 L-Serine 3.5 L-Leucine 3.0 L-Phenylalanine 2.5 L-Valine 2.5 L-Isoleucine 2.0 L-Threonine 2.0 L-Histidine 1.0 L-Methionine 0.75 L-Tyrosine 0.75 Hydroxylysine 0.55 Possible claims for each amino acid EAA (essential amino acids): Isoleucine , Leucine, Lysine, Methionine, Phenylalanine , Threonine , Tryptophan , Valine BCAA (branched chain amino acids): leucine, isoleucine, valine Collagen (as protein): Glycine, proline, hydroxyproline 1. L-Alanine May support glucose metabolism. Can reduce muscle fatigue. 2. L-Arginine HCl Supports the production of nitric oxide (NO). Can improve blood flow and circulation. Potentially beneficial for cardiovascular health. 3. L-Aspartic Acid Plays a role in the urea cycle and removal of excess ammonia. Can support energy and endurance. 4. L-Glutamic Acid Acts as a neurotransmitter. May support cognitive functions. 5. Glycine Supports collagen synthesis. Can improve sleep quality. Contributes to protein synthesis. 6. L-Histidine Essential for histamine production. Important for growth and tissue repair. 7. L-Isoleucine A branched-chain amino acid (BCAA) that supports muscle growth and repair. Can contribute to energy production. 8. L-Leucine An essential BCAA that promotes muscle protein synthesis. Supports muscle recovery and growth. 9. L-Lysine HCl Essential for collagen formation. May support calcium absorption. 10. L-Methionine Important for protein synthesis. May support liver function and detoxification. 11. L-Proline Key role in collagen formation. Supports skin, joints and connective tissue. 12. L-Serine Important for brain function and nervous system health. Participates in the synthesis of phospholipids. 13. L-Threonine Supports immune function. Crucial for the synthesis of collagen and elastin. 14. L-Tyrosine Precursor to neurotransmitters such as dopamine and adrenaline. May improve cognitive function and mood. 15. L-Valine An important BCAA that supports muscle energy and growth. Important for muscle metabolism. 16. L-Phenylalanine Precursor to neurotransmitters such as dopamine, noradrenaline and adrenaline. May improve mood and cognitive function. 17. Hydroxyproline Important for the stability and structure of collagen. Supports skin, bones and joints. 18. Hydroxylysine Essential for cross-linking of collagen fibers. Supports connective tissue health. General claims based on amino acid content Muscle building and recovery High concentration of BCAAs (L-Leucine, L-Isoleucine, L-Valine ) supports muscle growth and recovery. Collagen support Glycine, L-Proline and Hydroxyproline are essential for the formation and maintenance of collagen. Cognitive and mood support L-Glutamic acid, L-Tyrosine and L-Phenylalanine are important for neurotransmitter production. Immune defense L-Threonine and L-Arginine contribute to a strong immune system. Metabolic support L-Alanine and L-Arginine are involved in glucose metabolism and the production of nitric oxide (NO).