NOW Sports Branched-Chain Amino Acids supplement bottle
NOW Sports

Branched-Chain Amino Acids

What We Researched
3 active ingredients analyzed · 2 inactive ingredients decoded · 6 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
89
Product Score Good
97
Brand Score Excellent

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
L-Leucine 1600 mg
L-Isoleucine 650 mg
L-Valine 650 mg
Bioavailability Excellent

Absorption Rating

  • L-Leucine Good
  • L-Isoleucine Good
  • L-Valine Good
Other Ingredients Excellent

Fillers & Additives

  • Bovine Gelatin
  • Stearic Acid
Efficacy Fair

Dosage Analysis

  • L-Leucine 1600 mg Under-dosed
  • L-Isoleucine 650 mg High
  • L-Valine 650 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
L-Leucine 1600 mg
L-Isoleucine 650 mg
L-Valine 650 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Bovine Gelatin Safe

Forms capsule shells. Sourced from bovine (cow) collagen.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Price Comparison

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
NOW Sports

Founded 1968 · Bloomingdale, Illinois, USA · 178 products · nowfoods.com

Certifications

6 certifications
Informed Sport Verified Source
Non Gmo Project Verified Source
Npa Gmp Verified Source
Usda Organic Verified Source
Fda Gmp Inspections Verified Source
Vegan Certified Verified Source

Transparency

5 claims
Third Party Testing Claim — Verified Source
Coa Availability — Verified Source
Testing Lab Disclosure — Verified Source
In House Testing — Verified Source

Violation History

1 incident
Recall NOW Real Food® Raw Macadamia Nuts2020-06-12Source
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Frequently Asked Questions
Is NOW Sports Branched-Chain Amino Acids a good supplement?

NOW Sports Branched-Chain Amino Acids received a product quality score of 89/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 3 active ingredients with 15 servings per container. All 2 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, NOW Sports, holds a brand trust score of 97/100 with 6 verified certifications including Informed Sport, Non Gmo Project, Npa Gmp, Usda Organic.

What are the ingredients in NOW Sports Branched-Chain Amino Acids?

NOW Sports Branched-Chain Amino Acids contains 3 active ingredients: L-Leucine (1600 mg), L-Isoleucine (650 mg), L-Valine (650 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NOW Sports Branched-Chain Amino Acids safe to take?

NOW Sports Branched-Chain Amino Acids has been analyzed for ingredient safety across all its components. All 2 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is NOW Sports a trustworthy supplement brand?

NOW Sports receives a brand trust score of 97/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1968 and headquartered in Bloomingdale, Illinois, USA, the company offers 178 products in their lineup. They hold 6 verified certifications including Informed Sport, Non Gmo Project, Npa Gmp, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: NOW Sports has 1 historical regulatory incident on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.