NOW Foods Sports Nutrition

Our verdict

NOW Foods Sports Nutrition works out to $0.11 per serving of l-glutamine, at 1000mg per serving in capsule form. That puts it below the median of the 36 l-glutamine products we can price per dose, where the typical serving costs $0.15, a Value Index of 1.4 where the median product is 1.0. One container lasts 120 days at the label dose of 1 serving a day, about $3.25 a month. We could not verify a third-party certification for NOW in a public registry. Worked out from the current retail price as of 2026-11-13; confirm the live price on Amazon.com before buying.