L-Isoleucine 500 mg®

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Serving Size: 1 Capsule(s) · 1 per day

Not Present

• 

  L-ISOLEUCINE POWDER (240 Capsules) (500MG/CAPSULE, 120 GRAMS TOTAL)

  Umbrella Labs

  $15.95
• 

  L-Isoleucine

  BulkSupplements.com5.0(10)

  $16.97
• 

  L-Isoleucine Powder

  Jo Mar Labs

  $43.30
• 

  Douglas Laboratories Amino Blend 100 Capsules

  boulevardcompounding.com5.0(4)

  $73.00
• 

  Nutricost L-Isoleucine Capsules

  iHerb4.8(231)

  $15.95
• 

  Douglas Laboratories Muscle Protect with HMB

  PureFormulas.com4.3(3)

  $85.00
• 

  BulkSupplements L-Isoleucine Powder

  Walmart - BulkSupplements.com5.0(10)

  $22.97
• 

  L-Isoleucine Essential Amino Acid Powder

  Prescribed For Life

  $88.99

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

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• The Vitamin Shoppe

  4.4 (98)

  Vitamin & supplements store

  2692 Canyon Springs Pkwy # A, Riverside, CA 92507

  Directions(951) 653-3270

• Nutrishop Moreno Valley

  4.8 (70)

  Vitamin & supplements store

  12950 Day St STE 103, Moreno Valley, CA 92553

  Directions(951) 213-2164

• GNC

  4.2 (69)

  Vitamin & supplements store

  22500 Town Cir, Moreno Valley, CA 92553

  Directions(951) 656-2425

• Wholesale Nutrition Center

  5.0 (95)

  Vitamin & supplements store

  3427 Arlington Ave, Riverside, CA 92506

  Directions(951) 289-9033

• Pure Nutrition

  4.9 (86)

  Vitamin & supplements store

  9496 Magnolia Ave Ste 102, Riverside, CA 92503

  Directions(951) 729-5724

• Sol Naturista

  Vitamin & supplements store

  25211 Sunnymead Boulevard, Moreno Valley, CA 92533

  Directions(760) 669-2353

• Pure Nutrition

  4.3 (16)

  Vitamin & supplements store

  8735 Trautwein Rd suite A, Riverside, CA 92508

  Directions(951) 776-8114

• Nutrishop Riverside

  4.9 (113)

  Vitamin & supplements store

  10276 Indiana Ave, Riverside, CA 92503

  Directions(951) 354-2311

• International Society of Sports Nutrition position stand: energy drinks

  B Campbell, C Wilborn, P La Bounty… - Journal of the …, 2013 - Taylor & Francis

  … grams of the amino acids L-leucine, L-isoleucine, L-valine, L-… thermogenic supplements is typically higher (eg, 200-500 mg… for multiple dietary supplement and medical food companies, …

  2013320 citations

• Regulation of Metabolic Health by Dietary Protein and Isoleucine

  ME Trautman - 2024 - search.proquest.com

  … BCAA supplementation in rodents 18 Though it may seem paradoxical to the literature … where BCAA supplementation has been reported to improve health. Specific supplementation of …

  20241 citations

• Sodium phenylbutyrate decreases plasma branched-chain amino acids in patients with urea cycle disorders

  LC Burrage, M Jain, L Gandolfo, BH Lee… - Molecular genetics and …, 2014 - Elsevier

  … by review of medical records whenever possible. … mg/kg. The participants were further subdivided by dose into three groups [< 250 mg/kg (n = 30), 250–500 mg/kg (n = 39), and > 500 mg…

  201479 citations

• Chronic Supplementation with L-Isoleucine Alone or in Combination with Exercise Reduces Hepatic Cholesterol Levels with No Effect on Serum Glucose, Insulin, or …

  M Dellogono, L Clark, C Ferrara… - Food and …, 2023 - scholarworks.merrimack.edu

  … the Health Sciences at Merrimack ScholarWorks. It has been accepted for inclusion in Health … to examine the influence of chronic L-isoleucine supplementation on serum glucose, lipids, …

  20231 citations

• Amino acid and alpha-keto acid-induced hyperinsulinism in the leucine-sensitive type of infantile and childhood hypoglycemia

  MM Grumbach, SL Kaplan - The Journal of Pediatrics, 1960 - Elsevier

  … The results indicate that L-isoleucine and the ~-keto acid analogue of L-leucine, a-ketoisocaproic acid, as well as L-leucine, induce hypoglycemia by increasing the concentration of …

  1960105 citations

• Society of Sports Nutrition (ISSN) Conference and Expo

  M Dahlinghaus - Journal of the International Society of Sports Nutrition, 2017 - Springer

  … randomly assigned to groups consisting of 500 mg A-GPC, 250 mg A-GPC, or … L-Isoleucine and L-leucine, may increase glucose uptake through insulin independent effects in healthy…

  20171 citations

• Reading BCAA and Amino Acid Labels

  What the leucine, isoleucine, and valine ratios on a BCAA label tell you, and how amino acid amounts are listed.

  VitaSuppTrack Editorial· Jun 24, 2026

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2012-06-25. DSLD Label ID: 9242. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.