Amino acids are the building blocks of proteins — essential for muscle repair, enzymes & hormones, immune function, and neurotransmitters. Of the 20 standard amino acids used in human proteins, 9 are essential (must come from food), 7 are conditionally essential (needs rise in stress/illness/growth), and the rest are non-essential (normally synthesised by the body).
✅ Balanced intake → better recovery, resilience, and metabolic health.
❌ Imbalanced/prolonged low intake → reduced performance, poor healing, low lean mass.
👉 Click any amino acid below to view its full profile.
Haemoglobin & histamine precursor
Muscle fuel • Recovery
mTOR trigger • Muscle protein synthesis
Collagen cross-linking • Immunity
Methylation • Sulphur donor
Tyrosine precursor • Neurotransmitters
Mucins • Gut integrity
Serotonin & melatonin precursor
Muscle recovery • Nitrogen transport
NO synthesis • Wound healing • Immunity
Glutathione synthesis • Antioxidant defence
Gut fuel • Immune cells • Recovery
Collagen backbone • Neurotransmission
Collagen stability • Tissue repair
Phospholipids • One-carbon metabolism
Dopamine/NE/Epi • Thyroid hormone
Glucose-alanine cycle • Energy
Protein folding • Nitrogen transport
Urea cycle • Energy pathways
Primary excitatory neurotransmitter
TGA-compliant note: This overview describes normal physiological roles of amino acids. It does not claim to diagnose, treat, cure, or prevent disease.