Supplements
/
Amino Acids
/
L-Glutamine Powder
Excellent 4.6 out of 5
Amino Acids

L-Glutamine Powder

L-Glutamine Powder is a pure amino acid supplement that helps replenish glutamine used during intense exercise to support faster muscle recovery and reduce post-workout soreness. It may also support immune function and gut health by helping maintain intestinal barrier integrity and aiding recovery from digestive stress.

Learn more about L-Glutamine Powder
Cancel anytime
HSA/FSA eligible
Results in a week
Physician reviewed

Every result is checked

·
CLIA-certified labs

Federal standard for testing

·
HIPAA compliant

Your data is 100% secure

Key Facts

  • L-glutamine is a conditionally essential amino acid that becomes increasingly important during stress, illness, or intense physical activity
  • Supports the intestinal lining's structural integrity and helps maintain a healthy gut barrier
  • Plays a central role in immune cell function and muscle protein synthesis during recovery
  • Free-form powder and capsule options offer flexibility for different preferences and absorption timing

Ingredients

L-glutamine (free form), vegetarian capsules (cellulose, water), ascorbyl palmitate.

Why We Chose This

Your gut lining and immune system both depend heavily on glutamine, especially when your body is under physical or metabolic stress. This formulation uses free-form l-glutamine, which bypasses digestion and enters circulation quickly, making it particularly useful for those recovering from intense training or managing digestive sensitivity. The vegetarian capsule option and minimal ingredient list reflect a commitment to clean, research-backed support without unnecessary additives.

Other Amino Acids

See more supplements

Frequently Asked Questions About L-Glutamine Powder

What is the supporting research for the benefits of L-glutamine powder?
How do I take L-glutamine powder?

Mix 5–10 grams of powder with water or a beverage and take it 1–2 times daily with meals or as directed.

Consistency matters more than timing — taking it around the same times each day helps your gut maintain that supportive environment it needs.

Can I take L-glutamine powder with other supplements or medications?

L-glutamine is generally safe to combine with most supplements and medications, though it may interact with anticonvulsant drugs by potentially reducing their effectiveness. Always discuss your full supplement and medication list with your healthcare provider before starting L-glutamine.

Who might benefit from taking L-glutamine powder?

Athletes and active individuals benefit from L-glutamine's role in muscle recovery and maintenance during intense training. People managing digestive concerns or those recovering from surgery also find value in its support for intestinal integrity and tissue repair.

How long does it typically take to notice effects of L-glutamine powder?

Most people notice effects within 4 to 6 weeks of consistent daily use, though individual timelines vary based on your baseline levels and specific health goals. Since L-glutamine is stored in your muscles and released gradually, patience with supplementation typically yields the most meaningful results.

How it works

1

Test your whole body

Get a comprehensive blood draw at one of our 3,000+ partner labs or from the comfort of your own home.

2

An Actionable Plan

Easy to understand results & a clear action plan with tailored recommendations on diet, lifestyle changes, supplements and pharmaceuticals.

3

A Connected Ecosystem

You can book additional diagnostics, buy curated supplements for 20% off & pharmaceuticals within your Superpower dashboard.

Superpower tests more than 
100+ biomarkers & common symptoms

Developed by world-class medical professionals

Supported by the world’s top longevity clinicians and MDs.

Dr Anant Vinjamoori

Superpower Chief Longevity Officer, Harvard MD & MBA

A smiling woman wearing a white coat and stethoscope poses for a portrait.

Dr Leigh Erin Connealy

Clinician & Founder of The Centre for New Medicine

Man in a black medical scrub top smiling at the camera.

Dr Abe Malkin

Founder & Medical Director of Concierge MD

Dr Robert Lufkin

UCLA Medical Professor, NYT Bestselling Author

membership

$17

/month
Billed annually at $199
A smartphone displays health app results, showing biomarker summary, superpower score, and biological age details.
A smartphone displays health app results, showing biomarker summary, superpower score, and biological age details.
What could cost you $15,000 is $199

Superpower
Membership

Your membership includes one comprehensive blood draw each year, covering 100+ biomarkers in a single collection
One appointment, one draw for your annual panel.
100+ labs tested per year
A personalized plan that evolves with you
Get your biological age and track your health over a lifetime
$
17
/month
billed annually
Pricing for members in NY & NJ is $399
Flexible payment options
Four credit card logos: HSA/FSA Eligible, American Express, Visa, and Mastercard.
Start testing
Cancel anytime
HSA/FSA eligible
Results within a week
Detect signs of 1000s of conditions
At-home testing available
A personalized plan that actually works
Excellent 4.6 out of 5
Trusted by 150k+ people
HSA/FSA eligible

Start your Superpower membership

Detect signs of 1000s of conditions
At-home testing available
A personalized plan that actually works
How often do you want to test?
Advanced vs Baseline Panels
Hear a health practitioner’s perspective.
Start testing
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
What’s the difference between testing plans?

The Superpower Baseline Panel is already comprehensive.
It covers 10 times more biomarkers than a typical annual physical.

The Advanced Panel is designed to go deeper, with three scenarios in particular.

  • Uncovering risks that don’t show up in standard labs
    Markers like Lp(a), LDL lipoprotein fractionation help identify cardiovascular risk even when cholesterol looks normal.
  • Know what drives energy, metabolism and hormones
    Tests like insulin, IGF-1, thyroid antibodies, and inflammatory markers explain symptoms that basic hormone tests can’t.
  • Reveal deeper patterns
    Inflammation, autoimmunity, and nutrient markers (e.g. homocysteine, ESR, thyroid antibodies) can show what’s driving long-term health trends.

Individuals with family history of heart disease, unresolved symptoms, or a desire to understand inflammation and hormone health especially benefit from testing.

What’s the difference between testing plans?
Baseline Panel
100+ biomarkers
Advanced Panel
Additional 20 biomarkers
Doctors suggest testing the Advanced Panel at least once per year.
What's the difference between test plans

The Advanced Panel is designed to go deeper, with three scenarios in particular.

In this video, our clinician Brittany will explain what scenarios Advanced testing is helpful for.

Doctors suggest testing the Advanced Panel at least once per year.
Superpower Membership
Annual test

Finally, healthcare that looks at the whole you