KAL L-Arginine 500 mg L-Ornithine 500 mg supplement bottle
KAL

L-Arginine 500 mg L-Ornithine 500 mg

What We Researched
3 active ingredients analyzed · 3 inactive ingredients decoded · 3 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
70
Product Score Fair
73
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Total Carbohydrates 1 g 1%
L-Arginine Hydrochloride 500 mg
L-Ornithine Hydrochloride 500 mg
Bioavailability Very Good

Absorption Rating

  • Total Carbohydrates Fair
  • L-Arginine Hydrochloride Good
  • L-Ornithine Hydrochloride Good
Other Ingredients Excellent

Fillers & Additives

  • Cellulose
  • Stearic Acid
  • Silica
Efficacy Very Poor

Dosage Analysis

  • L-Arginine Hydrochloride 500 mg Under-dosed
  • L-Ornithine Hydrochloride 500 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Total Carbohydrates 1 g 1%
L-Arginine Hydrochloride 500 mg
L-Ornithine Hydrochloride 500 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

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
KAL

Founded 1932 · Salt Lake City, Utah, United States · 289 products · kalvitamins.com

Certifications

3 certifications
Nsf Gmp Verified Source
Fda Gmp Inspections Verified Source
Usda Organic Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source

Violation History

1 incident
Lawsuit A consumer class action was filed alleging that the marketing of a dietary supplement violated California's consumer-protection laws.2013Source
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Frequently Asked Questions
Is KAL L-Arginine 500 mg L-Ornithine 500 mg a good supplement?

KAL L-Arginine 500 mg L-Ornithine 500 mg received a product quality score of 70/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 3 active ingredients All 3 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, KAL, holds a brand trust score of 73/100 with 3 verified certifications including Nsf Gmp, Fda Gmp Inspections, Usda Organic.

What are the ingredients in KAL L-Arginine 500 mg L-Ornithine 500 mg?

KAL L-Arginine 500 mg L-Ornithine 500 mg contains 3 active ingredients: Total Carbohydrates (1 g), L-Arginine Hydrochloride (500 mg), L-Ornithine Hydrochloride (500 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is KAL L-Arginine 500 mg L-Ornithine 500 mg safe to take?

KAL L-Arginine 500 mg L-Ornithine 500 mg has been analyzed for ingredient safety across all its components. All 3 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 KAL a trustworthy supplement brand?

KAL receives a brand trust score of 73/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1932 and headquartered in Salt Lake City, Utah, United States, the company offers 289 products in their lineup. They hold 3 verified certifications including Nsf Gmp, Fda Gmp Inspections, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: KAL 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.