*Supplement testing matters—because your body deserves better than guesswork. At Fortitude, we third-party test our products to ensure purity, potency, and label accuracy. No hidden fillers, no underdosed ingredients, and no shortcuts—just clean, reliable fuel you can trust every time you train, recover, or perform.*

L-Glutamine Powder
Reliable shipping
Flexible returns
L-Glutamine – Recovery Starts Here
Your body makes it. Training demands more. L-Glutamine is the most abundant amino acid in the bloodstream, essential for muscle repair, immune health, and overall recovery. But when you're training hard—lifting heavy, rolling often, or pushing your limits—your body's natural glutamine production can’t keep up.
That’s where Fortitude L-Glutamine comes in.
Why Fortitude L-Glutamine?
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Pure, Unflavored, and Effective
No fillers, no fluff—just 100% L-Glutamine. Mixes cleanly in water or your post-workout shake for easy, seamless recovery.* -
Muscle Support
Helps preserve lean muscle mass, especially during periods of intense training, cutting phases, or calorie restriction.* -
Immune Defense
Glutamine plays a key role in gut and immune function—critical for staying healthy and consistent with training.* -
Recovery Amplified
Speeds up repair after intense sessions so you can bounce back faster, train harder, and stay on track toward your goals.*
Built for High Performers
Whether you’re cutting weight, increasing volume, or just showing up every day, L-Glutamine helps fortify your foundation—supporting recovery, immunity, and performance from the inside out.
Ingredients:
L-Glutamine Powder (100%)
Support your system. Protect your progress.
Recover smarter with Fortitude L-Glutamine.
Flavor: Unflavored
Manufacturer Country: USA
Product Amount: 0.66lb (300g)
Gross Weight: 0.7lb (317g)
Suggested Use: 1 serving 1 to 3 times daily with a beverage of choice or as directed by a healthcare professional.
Caution: Do not exceed recommended dose. Pregnant or nursing mothers, children under 18 years of age, and individuals with a known medical condition should consult a physician before using this or any dietary supplement. This product is manufactured and packaged in a facility that may also process milk, soy, wheat, egg, peanuts, tree nuts, fish, and crustacean shellfish.
Warning: Keep out of reach of children. Do not use if the safety seal is damaged or missing. Store in a cool, dry place.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.