NOW Sports L-Arginine 1000 mg Double Strength – Nitric Oxide & Muscle Support, 60 Tablets

NOW Sports L-Arginine 1000 mg Double Strength is a high-potency amino acid supplement formulated to support nitric oxide production, protein metabolism, and muscle maintenance. Each tablet provides 1,000 mg of pharmaceutical-grade L-Arginine, delivering twice the amount found in NOW's regular-strength 500 mg L-Arginine capsule.

L-Arginine is a conditionally essential amino acid involved in normal protein production, urea metabolism, and nitric oxide synthesis. As a precursor to nitric oxide, arginine supports normal blood vessel function and circulation, making it a popular choice for active adults and fitness-focused users. It also contributes to normal amino acid metabolism and muscle maintenance as part of a balanced nutrition and exercise routine.

This double-strength formula comes in a convenient vegetarian tablet and is Non-GMO, vegan/vegetarian, kosher, halal, soy free, dairy free, egg free, and nut free. It is also Informed Sport certified and steroid tested, making it a quality-focused sports nutrition option for athletes and active adults seeking a straightforward L-Arginine supplement.

Key Benefits

• Provides 1,000 mg of pharmaceutical-grade L-Arginine per tablet.
• Supports normal nitric oxide production.
• Supports healthy blood vessel function and circulation.
• Helps support normal protein metabolism.
• Supports muscle maintenance as part of an active lifestyle.
• Double-strength formula provides twice the L-Arginine of the regular 500 mg product.
• Suitable for vegan and vegetarian sports nutrition routines.

Product Details

Featured Ingredients

L-Arginine – 1,000 mg: A conditionally essential amino acid involved in normal protein production, urea metabolism, and nitric oxide synthesis. As a nitric oxide precursor, L-Arginine supports normal vascular function and circulation while contributing to muscle maintenance and protein metabolism.

Other Ingredients: Microcrystalline cellulose, hydroxypropyl cellulose, stearic acid (vegetable source), croscarmellose sodium, silicon dioxide, and vegetarian coating containing hypromellose, calcium carbonate, and glycerin.

How to Use

Take 1 tablet twice daily as needed. Take between meals or at bedtime with at least 8 oz. of water or juice to facilitate absorption.

For adults only. Not for pregnant or nursing women. Consult a healthcare professional before use if taking medication, managing a medical condition, or planning surgery. Keep out of reach of children.

Best Time to Take

Take between meals or at bedtime as directed on the product label. Always take each tablet with at least 8 oz. of water or juice.

Best For

• Adults seeking a high-potency L-Arginine supplement.
• Athletes looking for nitric oxide support.
• Fitness-focused users supporting muscle maintenance.
• Active adults seeking amino acid and protein metabolism support.
• People who prefer 1,000 mg double-strength tablets.
• Vegan and vegetarian sports nutrition routines.