🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • Limited research evidence available for ingredients
B Label Compliance Grade

Product Label

📸

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Label Data

2 Gram(s) Serving Size
75 Servings
Amino acid/Protein Product Type
0% Evidence Coverage

Supplement Facts — Evidence Check

2000 mg
📊 Market median: 17.4mg (161 products)
Median 17.4mg This product: 2000mg

Other Ingredients

Absolutely None

Label Claims — Verification

All Other
Structure/Function
All Other (100% of products) Structure/Function (90% of products) Nutrient (56% of products)

Target Groups

Vegetarian Adult (18 - 50 Years) Kosher No Allergies Gluten Free

Product Information

📋 Directions for Use

1 serving - Mixed with - 8-16 oz. - Favorite Beverage - 2-3x daily

Suggested Use: As a dietary supplement, take 2 level scoops (2000 mg) mixed into your favorite beverage 2 to 3 times daily, or as directed by your physician. Mix for 20 seconds using a shaker cup or mix thoroughly with a spoon. May be hygroscopic and may clump during storage which will not affect the quality of the product.

⚠️ Warnings & Precautions

If you are pregnant, breast feeding, have known medical conditions (including kidney or liver disease) or are taking prescription or OTC medication(s) consult with your health care practitioner before using this product.

Warning: Not intended for use by persons under the age of 18. Keep out of the reach of children.

🧪 Formulation Notes

Pharmaceutical Free Form Amino Acid

No fillers - No excipients - No additives

Free of Harmful Impurities

Allergen Free - Non-GMO - Gluten Free - BSE/TSE Free

Vegetarian

Additional Information

Manufactured in a GMP & FDA Inspected Facility

Quality and purity since 1996. NutraBio manufactures in our own FDA registered & inspected GMP facility complying with FDA 21 CFR Part 111 regulations.

100% Pure

Pharmaceutical Grade - HPLC Lab Tested for Potency

True Label Full Label Disclosure

OU

Store in a cool dry place.

Serving Scoop Included. (May settle to the bottom during shipping.)

Since 1996

23250-007 B20175-002

Made in a GMP & FDA Inspected Facility

Product Details

UPC / SKU 6 49908 23250 4
DSLD Entry Date 2015-09-25
Product Type Amino acid/Protein
Form Powder
Brand NutraBio
DSLD ID 50934
Data Updated 2026-04-11

Research Evidence

8 Research Sources
45 Avg Quality Score
7 Clinical Trial
1 Meta Analysis
B Effects of Whey Protein, Leucine, and Vitamin D Supplementation in Patients with Sarcopenia: A Systematic Review and Meta-Analysis
Meta Analysis Nutrients 2023
C Leucine-enriched Branched-chain Amino Acid on Muscle Thickness, Interleukin-6, SOFA Score in Critical Illness
Clinical Trial ClinicalTrials.gov 2023
C The Effects of Leucine Metabolites in Performance, Body Composition and Biochemical Markers of Muscle Damage
Clinical Trial ClinicalTrials.gov 2017
C Can Supplemental Leucine Offset Disuse-induced Muscle Atrophy?
Clinical Trial ClinicalTrials.gov 2017
C Leucine Supplementation in Sarcopenic Older Individuals
Clinical Trial ClinicalTrials.gov 2019
C The Effect of Leucine on Carnitine Transport to Skeletal Muscle
Clinical Trial ClinicalTrials.gov 2016
C Hydrolyzed Casein and Whey Protein Supplementation and the Addition of Leucine to Induce Protein Anabolism in Malnourished COPD Patients
Clinical Trial ClinicalTrials.gov 2009
C Resistance Exercise Training and Amino Acid Leucine Supplementation in Frail Elderly Women
Clinical Trial ClinicalTrials.gov 2013
View all evidence for Leucine →

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