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Ranked 11th among 30 L-Arginine products.
Available here from $ 40.03

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Overview

NOW Foods Sports L-Arginine Powder is a dietary supplement made with pure L-arginine in powder form. It is positioned as an amino acid product that supports protein metabolism and serves as a precursor to nitric oxide, which is involved in blood vessel dilation. The formula provides 100% L-arginine and is described as pharmaceutical grade.

This product is presented as a vegan, kosher, halal, non-GMO, steroid-free option that is also Informed Sport tested. That combination makes it distinct from a basic amino acid powder, since it pairs a single active ingredient with third-party sport-testing status and multiple dietary suitability claims.

L-arginine is described as a conditionally essential amino acid involved in urea metabolism and excretion, as well as DNA synthesis and protein production. The powder format also allows the serving to be mixed into liquid rather than taken as a capsule or tablet.

Key Features & Benefits

  • Provides L-arginine in a pure powder format.
  • Supplies 100% pharmaceutical-grade L-arginine.
  • Formulated to support protein metabolism.
  • Serves as a nitric oxide precursor, which helps support normal blood vessel dilation.
  • Designed for mixing into water or juice.
  • Informed Sport tested for athletes who want a screened supplement.
  • Suitable for vegan, kosher, halal, and non-GMO diets.
  • Made without steroid ingredients.
  • Produced in a GMP facility.
  • Packaged and quality tested in the USA.

Specifications

  • Brand: NOW Foods Sports
  • Product name: L-Arginine Powder
  • Supplement type: Amino acid dietary supplement
  • Active ingredient: L-Arginine
  • Dosage form: Powder
  • Strength: Not stated in the source
  • Release type: Not stated in the source
  • Intended use: Supports protein metabolism and nitric oxide production
  • Dietary characteristics: Vegan, kosher, halal, non-GMO
  • Free-from claim: Steroid free
  • Sport testing: Informed Sport tested
  • Quality standard: GMP quality assured

Suggested Use

Mix 2 level teaspoons daily as needed into at least 8 oz. of water or juice. For best results, it is preferably taken on an empty stomach.

Other Ingredients

None.

Allergen & Dietary Information

This formula is not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut, or sesame ingredients. It is also described as vegan, kosher, halal, non-GMO, and steroid free. The product is produced in a GMP facility that also processes ingredients containing those allergens.

Warnings

  • This product is sold by weight, not by volume.
  • Use at least 8 oz. of water or juice when taking it.
  • For adults only.
  • Do not use if pregnant or nursing.
  • Ask a physician before use if you take medication, especially antihypertensive, anticoagulant, or antidiabetic drugs.
  • Consult a physician if you have a medical condition, especially asthma or renal disease, or if you are planning surgery.
  • Avoid use if you have glaucoma or herpes simplex unless a physician advises otherwise.
  • Do not use if you have had a myocardial infarction or have established coronary artery disease.
  • Keep out of reach of children.
  • Natural color variation may occur.

Storage

After opening, store in a cool, dry, dark place.

This L-arginine powder is designed to provide amino acid support in a pure, easy-to-mix form, with pharmaceutical-grade quality and Informed Sport testing as standout formulation features.

Disclaimer

The information provided on this page is intended for general informational purposes only and should not be considered medical advice. Product formulations, ingredients, packaging, and labeling may change over time. Always read the label, warnings, and directions provided with the product before use. If you are pregnant, nursing, taking medication, or have a medical condition, consult a qualified healthcare professional before using any dietary supplement.

Now Foods Sports L-Arginine Powder FACTS AND ALTERNATIVES COMPARISON

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Serving Size 2 Level Teaspoons (approx. 6 g) 1 Tablet 1 Level Teaspoon (approx. 3.1 g) 1 Capsule
Price/Serving $0.24 $0.54 125% $0.33 38% $0.11 54%
Servings Per Container about 167 60 About 48 200
Arginine 6 g (6,000 mg) · † (Free-Form) missing substance or information* 2.25 g · ** 700 mg · **
Calories 30 missing substance or information* missing substance or information* missing substance or information*
Horny Goat Weed Epimedium missing substance or information* 30 mg (aerial parts)] missing substance or information* missing substance or information*
Ornithine missing substance or information* missing substance or information* 750 mg · ** missing substance or information*
Vitamin C missing substance or information* missing substance or information* missing substance or information* 10 mg · 11% (as Ascorbyl palmitate)

*Some information on the Now Foods Sports L-Arginine Powderlabel may be missing, or it may have been written incorrectly. We work hard to keep the information accurate & up to date. Please let us know if you discover any errors.

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This content is for informational purposes only and is not a substitute for professional medical advice. Consult a qualified healthcare provider before taking any supplement.