L-leucine in food supplements
3,277 supplements declared in France contain L-leucine as a substance or active ingredient.
Declarations also use the name: Leucine. Separate page, as the form (L or D) is not always stated.
Other names in the Compl'Alim list: L-leucine.
Compl'Alim declarations. Compl'Alim, food supplement declarations (France), retrieved 15 November 2026.
In plain words
À quoi il sert, selon les fabricants
Objectives most often stated for supplements that contain it (L-leucine): sport (1636 produits), croissance et developpement (93 produits), immunité (66 produits), système nerveux (64 produits), antioxydant (63 produits).
These are the objectives manufacturers declared to the authorities, not proven effects. On the packaging, only health claims authorised by the EU may be written.
Compl'Alim, food supplement declarations (France), retrieved 15 November 2026.
What we know about this ingredient
Associated research
ClinicalTrials.gov · A trial is not proof: it tests a hypothesis.
- NCT06580145 : Leucine in Midlife Depression
RECRUITING · PHASE2 · Major Depression · 2026-09-11 · L-leucine
Searched on 1 November 2026.
Scientific publications (PubMed)
668 records published in the five years before 12 November 2026. The name is searched in the title or abstract; derivatives and passing mentions can be counted. This count does not measure effectiveness.
Searched on 12 November 2026.
Most recent systematic reviews and meta-analyses:
- PMID 42965751. Pharmacological Interventions for Neurological Manifestations of Ataxia-Telangiectasia: An Updated Systematic Review and Meta-analysis of Randomized Controlled Trials. (2026, Cerebellum (London, England))
- PMID 38345088. Nutritional interventions for preventing and treating pressure ulcers. (2024, The Cochrane database of systematic reviews)
- PMID 37692424. Impact of drought on soil microbial biomass and extracellular enzyme activity. (2023, Frontiers in plant science)
What health agencies say
An opinion says what the agency recommends; it is not a rule binding on the product.
The BfR derived, for adults, a guidance value of 4.0 g per day for isolated leucine (alone or with the other branched-chain amino acids) taken in addition to the normal diet. It is based on animal data with uncertainty factors.
What the registers say, country by country
Each line repeats what an official register says on the date it was consulted. Not being in a register means neither allowed nor banned.
Compl'Alim ingredient list (France): listed.
Compl'Alim, reference list of ingredients, retrieved 21 October 2026.
Canada, licensed natural health products (LNHPD): 1311 products.
Licensed Natural Health Products Database (LNHPD), Health Canada: licensed products, ingredients, doses, uses and risks, retrieved 27 October 2026.
Contains information licensed under the Open Government Licence – Canada (Health Canada, LNHPD)
Licence du gouvernement ouvert – Canada 2.0 (OGL-Canada 2.0)
United States, supplement labels (DSLD; supplements need no prior approval): 2737 products.
Dietary Supplement Label Database (DSLD), US National Institutes of Health: current and off-market labels, retrieved 27 October 2026.
Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (CC0); US market labels.
Malaysia, registered products: 15 products.
NPRA, Malaysian pharmaceutical products register, retrieved 27 October 2026.
Ministry of Health Malaysia / NPRA, Pharmaceutical Products, CC BY 4.0
Taiwan, registered products: 52 products.
TFDA, Taiwan tablets, capsules and medical nutrition registers, retrieved 27 October 2026.
Taiwan Food and Drug Administration (TFDA), Open Government Data License, version 1.0
United States, supplements listed by the USDA: 36 products.
USDA FoodData Central Branded, supplement cohort, retrieved 15 November 2026.
Source: U.S. Department of Agriculture, Agricultural Research Service, FoodData Central, Branded Foods. Data published under CC0 1.0 Universal, https://creativecommons.org/publicdomain/zero/1.0/.
Products
- EVOBCAA’S 2.0 HSN, poudre, flavour apple, earlier declaration, replaced by the 2022 declaration
- EVOEAA'S (ESSENTIAL AMINO ACIDS) HSN, poudre, flavour mango, withdrawn from the market
- EVOEAA'S (ESSENTIAL AMINO ACIDS) HSN, poudre, flavour energy drink, withdrawn from the market
- EVOEAA'S (ESSENTIAL AMINO ACIDS) HSN, poudre, flavour watermelon, withdrawn from the market
- EVOFUEL - BLACKCURRANT HSN, poudre, flavour blackcurrant, earlier declaration, replaced by the 2026 declaration
- EVOFUEL - BLUE RASPBERRY HSN, poudre, flavour blue raspberry, earlier declaration, replaced by the 2026 declaration
- EVORDX 2.0 HSN, poudre, flavour blackcurrant, earlier declaration, replaced by the 2022 declaration
- EVORDX 2.0 HSN, poudre, flavour apple, earlier declaration, replaced by the 2022 declaration
- Extrait de Boswellia Vitamintrend, comprimé, withdrawn from the market
- G.BCAA PRO WORKOUT NUTRITION, capsule, withdrawn from the market
- GLUTA BCAA´S ZERO 8.1.1 IO GENIX, poudre, flavour mojito, withdrawn from the market
- GLUTA BCAA´S ZERO 8.1.1 IO GENIX NUTRITION, poudre, flavour cola, withdrawn from the market
- GLUTA BCAA´S ZERO 8.1.1 IO GENIX NUTRITION, poudre, flavour pomme vert, withdrawn from the market
- GLUTA BCAA´S ZERO 8.1.1 IO GENIX, poudre, flavour tutifrutti, withdrawn from the market
- GLUTAMINE MEGA STRONG POWDER Nutrend, poudre, flavour punch + cranberry, earlier declaration, replaced by the 2017 declaration
- Healthy Hair Vitamins Hairburst, gélule, earlier declaration, replaced by the 2021 declaration
- Hot Blood Hardcore No-Stim poudre, flavour orange, earlier declaration, replaced by the 2023 declaration
- Hot Blood Hardcore No-Stim poudre, flavour tropical punch, earlier declaration, replaced by the 2023 declaration
- ICOBCAA Fraise Kiwi First Iron Systems, poudre, flavour fraise kiwi, earlier declaration, replaced by the 2020 declaration
- ICOBCAA Orange First Iron Systems, poudre, flavour orange, earlier declaration, replaced by the 2020 declaration
- ICOBCAA Thé Glacé au Citron First Iron Systems, poudre, flavour thé glacé au citron, withdrawn from the market
- ISOXAN VITALITE ADULTE ISOXAN VITALITE ADULTE, autre : comprimés effervescents, flavour orange - citron, withdrawn from the market
- JOINT COMPLEX EAFIT, poudre, withdrawn from the market
- KELP HSN, capsule, withdrawn from the market
- KSM-66 ASHWAGANDHA EXTRACT HSN, capsule, earlier declaration, replaced by the 2025 declaration
- L-CARNITINE PRO Trec Nutrition, capsule, withdrawn from the market
- L-GLUTAMINE 1000 MG HSN, capsule, earlier declaration, replaced by the 2026 declaration
- LACTOFERRIN 200MG HSN, capsule, earlier declaration, replaced by the 2026 declaration
- LAVENDER EXTRACT HSN, capsule, earlier declaration, replaced by the 2026 declaration
- LIPO(X)PACK Trec Nutrition, capsule, withdrawn from the market
- LR Lifetakt Mind Master Extreme LR Lifetakt, poudre, earlier declaration, replaced by the 2020 declaration
- MASSE MUSCULAIRE Laboratoires MARTIN-PRIVAT Santé, poudre, flavour fruits rouges, withdrawn from the market
- MORINGA EXTRACT HSN, capsule, earlier declaration, replaced by the 2025 declaration
- MUSCLEPUMP NUTRIMSUCLE, poudre, flavour fraise, withdrawn from the market
- MUSCLEPUMP FRMABOISE BLEUE NUTRIMSUCLE, poudre, flavour framboise bleue, earlier declaration, replaced by the 2025 declaration
- MUSCLEPUMP MANGUE NUTRIMSUCLE, poudre, flavour mangue, withdrawn from the market
- MUSCLEPUMP YUZU NUTRIMSUCLE, poudre, flavour yuzu, earlier declaration, replaced by the 2025 declaration
- Magnésium Bisglycinate gélule, earlier declaration, replaced by the 2026 declaration
- Magnésium vital gélule, earlier declaration, replaced by the 2026 declaration
- Mega Amino BiotechUSA, comprimé, earlier declaration, replaced by the 2022 declaration
- Multi Men comprimé, withdrawn from the market
- N.O. Shox PROZIS, poudre, flavour citron, earlier declaration, replaced by the 2023 declaration
- N.O. Shox PROZIS, poudre, flavour cola, earlier declaration, replaced by the 2023 declaration
- N.O. Shox 660 g Prozis, poudre, flavour orange, withdrawn from the market
- N.O. Shox 660 g Prozis, poudre, flavour cola, withdrawn from the market
- N.O. Shox 660 g Prozis, poudre, flavour citron, withdrawn from the market
- NATTOKINASE 2000 FUs HSN, capsule, earlier declaration, replaced by the 2026 declaration
- Na-R-ALA 300 MG HSN, capsule, withdrawn from the market
- Nomad Formula NAP, capsule, withdrawn from the market
- PCOS CARE HSN, gélule, earlier declaration, replaced by the 2025 declaration
- POWER PUNCH poudre, flavour mandarine, withdrawn from the market
- POWER PUNCH poudre, flavour pastèque, withdrawn from the market
- POWER PUNCH poudre, flavour framboise bleue, withdrawn from the market
- POWER PUNCH ENERGY poudre, flavour orange-mangue, withdrawn from the market
- POWER PUNCH ENERGY poudre, flavour pastèque, withdrawn from the market
- PREMIUM MULTI (IRON & IODINE FREE) VITAMINALIA, capsule, earlier declaration, replaced by the 2026 declaration
- PowerBar Amino Mega liquid PowerBar, ampoule, earlier declaration, replaced by the 2023 declaration
- Programme fermeté Laboratoires Juvamine, gélule, withdrawn from the market
- Pyruvate BiotechUSA, gélule, earlier declaration, replaced by the 2023 declaration
- REISHI EXTRACT COMPLEX HSN, capsule, withdrawn from the market
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- XTEND Blue Raspberry Ice Supplement from the US market
- XTEND Mango Madness Supplement from the US market
- Elite Island Punch Fusion Supplement from the US market, 842595112801
- Elite Sour Gummy Flavor Supplement from the US market, 842595112818
- Elite Citrus Passionfruit Supplement from the US market, 842595112825
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- Sport Strawberry Kiwi Splash Supplement from the US market
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- Sports Recovery Gummies Berry Blast Supplement from the US market
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- Elite Pre Strawberry Kiwi Splash Supplement from the US market
- Elite Fraserade Supplement from the US market
- Keto Strawberry Kiwi Splash Supplement from the US market
- Keto Orange Mango Supplement from the US market
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- Keto Energy Knockout Fruit Punch Supplement from the US market