What is L-Arginine?

L-Arginine is a semi-essential (conditionally essential) amino acid that plays a central role in protein synthesis, nitrogen metabolism, and a wide range of physiological functions. It is widely used as a nutritional supplement ingredient, dough conditioner, and pH stabilizer.

• Nutritional Fortification & Supplement Formulation: Used to boost amino acid content in protein powders, nutrition bars, ready-to-drink (RTD) beverages, and fortified foods, supporting dietary needs and functional label claims.
• Dough Conditioning: In bakery applications, L-Arginine can act as a dough conditioner, improving texture, handling, and the final quality of baked goods.
• pH Stabilization: L-Arginine functions as a pH stabilizer in certain food and beverage formulations, helping maintain the acidity or alkalinity of a product and contributing to overall product stability.
• Flavor & Functional Enhancement: Its mild taste and excellent water solubility make L-Arginine highly compatible across a wide variety of product applications, from sports nutrition to functional beverages.
• Circulation & Immune Function Support: L-Arginine is a known precursor to nitric oxide (NO), which plays a role in supporting cardiovascular circulation. It is also associated with immune system support, making it a valued ingredient in health and wellness product lines.

L-Arginine Technical & Product Specifications

Regulatory & Handling Considerations

• Food Regulatory Status: L-Arginine is generally recognized as safe (GRAS) and is listed as a nutrient in the FDA Food Chemicals Codex (FCC). It is permitted for use in food, beverage, and dietary supplement applications in the U.S. and internationally.
• Stability: L-Arginine is stable under normal storage conditions. It is strongly alkaline; aqueous solutions can absorb carbon dioxide from the air. Store in a cool, dry, well-ventilated area in tightly closed containers. Product darkens at ~230°C and decomposes at ~244°C, so heat-sensitive applications may require formulation adjustment.
• Labeling: Must be declared on ingredient labels as “L-Arginine” in the U.S. (per 21 CFR Part 101).

About American International Foods, Inc. (AIFI) - A L-Arginine Supplier & Distributor

American International Foods, Inc. is a leading L-Arginine supplier with an additional full-service portfolio of over 2500 food and beverage ingredients. We offer one of the most extensive lines of amino acids distributed to manufacturers and processors in the food, beverage, pet food, health and nutrition sectors. With a strategic nationwide warehouse network and our reliable just-in-time deliveries, we can supply your business with high quality amino acids at competitive prices.