Explore common health concerns and discover practitioner-grade nutritional support tailored to help restore balance and support your overall wellbeing.
Health concerns rarely arrive in neat little boxes. If more than one area feels relevant, begin with the pattern affecting daily life the most — energy, sleep, digestion, mood, immunity, or hormonal balance.
Persistent, worsening, unexplained, or sudden symptoms should be discussed with a qualified health professional, especially when medication, pregnancy, breastfeeding, or existing health conditions are involved.
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A practical reference for amino acids, amino-acid derivatives and related compounds. Search by name, abbreviation, role or pathway, then open the profile, product collection or safety library when needed.
AminoIndex Finder
Search amino acids and related compounds by role, abbreviation or support pathway. Each result gives a short customer-friendly summary with direct links to the profile page, relevant product collection and safety library.
Looking for Glycine, Glutamine, Lysine, Creatine, Taurine, NAC or L-Theanine?
Trying to compare amino acids by muscle, recovery, sleep, mood, gut, antioxidant or methylation support?
Use the finder first, then choose whether to read, browse products or check safety.
Energy production and immune support.
Varies by dietary intake.
Usually obtained from dietary protein; rarely used alone as a standalone supplement.
Generally food-based. Use caution with high-dose single amino acids if managing kidney or liver conditions.
Supports wound healing, detoxification and immune function.
4–6 g
L-arginine capsules, powders, sports formulas and cardiovascular-support formulas.
Check first with blood pressure medicines, nitrates, herpes outbreaks, kidney disease, surgery or pregnancy.
Aids amino acid synthesis and nervous system function.
Varies by dietary intake.
Usually obtained through dietary protein; not commonly used as a standalone supplement.
Usually considered in food/protein context rather than targeted supplementation.
Supports hormone production and metabolism.
Varies by dietary intake.
Dietary protein sources; D-aspartic acid appears in selected hormone/testosterone-style formulas.
Use caution with hormone-sensitive conditions, fertility treatment or complex endocrine concerns.
Supports antioxidant production and healthy skin.
1–1.5 g
Cysteine, cysteine-rich protein foods and related NAC/glutathione pathways.
Check first with respiratory medicines, blood thinners, pregnancy, kidney stones or sulfur sensitivity.
Fuels immune cells and supports gut health.
5 g
L-glutamine powder, capsules, gut-support formulas and recovery formulas.
Check first with liver disease, kidney disease, cancer care, pregnancy or complex medical conditions.
Supports cognitive function and neurotransmission.
Varies by dietary intake.
Dietary protein sources; not commonly used alone compared with glutamine or related compounds.
Use caution with neurological conditions or sensitivity to excitatory compounds.
Supports sleep, collagen production and skin health.
3–5 g
Glycine powder, capsules, collagen-support formulas and sleep blends.
Use caution with sedatives, pregnancy, low blood pressure or complex neurological conditions.
Essential for tissue repair and blood cell production.
10–30 mg/kg body weight
Dietary protein, essential amino acid blends and selected single-amino formulas.
Check first with histamine intolerance, allergies, pregnancy or complex immune conditions.
Involved in muscle metabolism and haemoglobin production.
19 mg/kg body weight
BCAA powders, essential amino acid blends, protein powders and sports nutrition formulas.
Check with kidney or liver conditions, pregnancy, diabetes medicines or strict medical diets.
Supports muscle synthesis, repair and glucose regulation.
42 mg/kg body weight
BCAA powders, EAA blends, protein powders and muscle-recovery formulas.
Check with kidney or liver conditions, pregnancy, diabetes medicines or strict medical diets.
Supports protein synthesis and calcium absorption.
30–40 mg/kg body weight
L-lysine tablets, capsules, powders and immune/skin-support formulas.
Check first with kidney disease, pregnancy, calcium-related therapy or high-dose long-term use.
Supports metabolism, detoxification and tissue growth.
19 mg/kg body weight
Dietary protein, amino acid blends and selected liver/methylation formulas.
Use caution with high homocysteine, cardiovascular risk, pregnancy, liver/kidney conditions or methylation therapies.
Precursor to neurotransmitters involved in mood regulation.
33 mg/kg body weight
L-phenylalanine, DLPA and selected mood/focus formulas.
Avoid with PKU. Check first with antidepressants, stimulant medicines, blood pressure issues, pregnancy or anxiety.
Supports collagen production and wound healing.
Varies by dietary intake.
Dietary protein, collagen peptides and connective tissue formulas.
Generally food/collagen based; check high-dose use with kidney or liver concerns.
Supports cell membrane integrity and immune function.
Varies by dietary intake.
L-serine and phospholipid/cognitive-support formulas.
Check first with neurological conditions, pregnancy, kidney disease or complex supplement stacks.
Supports protein balance and gut health.
15 mg/kg body weight
EAA blends, protein powders and selected gut-support formulas.
Check with kidney or liver conditions, pregnancy or medical protein restrictions.
Precursor to serotonin and supports mood and sleep pathways.
4–6 mg/kg body weight
L-tryptophan capsules, tablets and sleep/mood formulas.
Important caution with antidepressants, serotonergic medicines, sedatives, pregnancy and bipolar disorder.
Supports hormone production and stress response pathways.
45–65 mg/kg body weight
L-tyrosine capsules, powders and focus/stress formulas.
Check first with thyroid medicines, stimulants, MAOIs, blood pressure concerns, pregnancy or anxiety.
Supports muscle growth and energy production.
24 mg/kg body weight
BCAA powders, EAA blends, protein powders and sports nutrition formulas.
Check with kidney or liver conditions, pregnancy, diabetes medicines or strict medical diets.
Supports energy production, fat metabolism and neuroprotective pathways.
500–2,500 mg/day
Acetyl L-carnitine capsules, tablets and mitochondrial/brain-support formulas.
Check first with thyroid medicines, seizure history, blood thinners, pregnancy or bipolar disorder.
Supports muscle energy production and high-intensity exercise performance.
3–5 g/day
Creatine monohydrate powder, capsules and sports performance formulas.
Check first with kidney disease, pregnancy, dehydration risk or medical fluid restrictions.
Acts as an antioxidant and supports muscle endurance and performance.
500–2,000 mg/day
Carnosine capsules and performance/healthy-ageing formulas; beta-alanine may support carnosine levels.
Check high-dose use with kidney disease, pregnancy or complex medical conditions.
Precursor to glutathione and supports antioxidant, detoxification and respiratory pathways.
600–1,800 mg/day
NAC capsules, tablets, powders and respiratory/glutathione-support formulas.
Check first with blood thinners, nitroglycerin, asthma medicines, surgery, pregnancy or sulfur sensitivity.
Supports cardiovascular function, nervous system development and bile salt formation.
500–3,000 mg/day
Taurine capsules, powders, electrolyte formulas and cardiovascular-support formulas.
Check first with blood pressure medicines, lithium, kidney disease, pregnancy or multiple heart medicines.
Supports muscle endurance and helps buffer exercise-related fatigue.
2–5 g/day
Beta-alanine powders, capsules and sports performance formulas.
May cause harmless tingling. Check pregnancy, neurological conditions or high-dose stacked pre-workouts.
Supports calm, focus and relaxation without sedation.
100–400 mg/day
L-theanine capsules, tablets, powders and calm/focus formulas.
Use caution with sedatives, blood pressure medicines, alcohol, pregnancy or excessive calming stacks.
Supports nitric oxide production, blood flow and cardiovascular pathways.
3–6 g/day
L-arginine capsules, powders and nitric-oxide/sports formulas.
Check first with nitrates, blood pressure medicines, herpes outbreaks, kidney disease, surgery or pregnancy.
Supports blood flow, sports performance and cardiovascular pathways.
1–10 g/day
L-citrulline, citrulline malate powders and sports/circulation formulas.
Check first with blood pressure medicines, nitrates, heart medicines, surgery or pregnancy.
Supports gut health and immune function, especially during stress or intense exercise.
5–10 g/day
L-glutamine powder, capsules and gut/recovery formulas.
Check first with liver disease, kidney disease, cancer care, pregnancy or complex medical conditions.
This guide is for general education only and is not medical advice. Amino acids and related compounds may interact with medicines and may not suit pregnancy, breastfeeding, surgery, diagnosed conditions, kidney or liver concerns, or complex health situations. Always read product labels and seek qualified healthcare advice where needed.
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