Frequently Asked Questions

What is L-arginine?

L-arginine is a conditionally essential amino acid: the body makes some of it, and the rest comes from the diet. It is found in protein-rich foods such as meat, fish, dairy, nuts and pulses.

NOW Sports recommends 1 tablet, 2 times per day as needed, between meals or at bedtime, with at least 240 ml of water or juice.

Informed Sport is a certification programme in which every batch of the product is tested for substances prohibited in sport. It is relevant for athletes subject to anti-doping controls.

It is not recommended for pregnant or breastfeeding women, or for anyone with coronary artery disease or who has had a myocardial infarction. If you take medication or have asthma, kidney disease, glaucoma or herpes simplex, consult your doctor before use.

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