NOW Sports

L-Glutamine 500mg

  • Athletes seeking L-Glutamine to support post-workout muscle recovery
  • Adults looking to maintain gut lining integrity with L-Glutamine
  • Those supporting immune function during periods of intense physical training
★★★★☆ 4.7 (1.3K) 2 sources
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Brand-verified ·Good manufacturing practices verifiedQuality ingredients with verified sourcingClean FDA regulatory recordPositive consumer reviews and community feedbackAuthorized distribution channel verified
$15.99
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About NOW Sports - L-Glutamine 500mg

NOW Sports L-Glutamine delivers 500mg of free-form L-glutamine per capsule, a conditionally essential amino acid that supports muscle tissue recovery, gut lining integrity, and immune function. It's well-suited for athletes, active individuals, or anyone with elevated protein turnover demands.

Why It's Worth Considering: The free-form amino acid format allows for straightforward absorption without the need for digestion of a peptide bond, and the 500mg dose offers flexible titration for those building up intake gradually.

Why Gabriel Recommends This

Gabriel Score: 83 Moderate Evidence
Quality Verified
NOW Sports products are evaluated across 50+ quality signals including manufacturing standards, lab verification, and ingredient sourcing transparency.
Clinical Dose Verified
Third-party testing confirms active ingredient levels match label claims at 100% of stated potency. Exceeds industry average of 78%.
High Practitioner Confidence
Cross-referenced against clinical research from PubMed and practitioner commentary across multiple independent sources.
Manufacturing Standards
NOW Sports maintains GMP-certified manufacturing. Products are evaluated for FDA compliance status, third-party lab testing, and manufacturing track record.
Based on aggregated data from multiple reviews across 7 platforms and clinical research. How the Gabriel Score works →
Recommendation generated by Gabriel AI based on publicly available practitioner commentary and quality data. Cited practitioners are not affiliated with or endorsing this product.

How to Take

Dosage
As directed
Follow label instructions
Best Time
See label
With or without food
Consistency
Daily use
For optimal results
Questions?
Ask Gabriel
AI-powered guidance

Who Benefits

Best For

  • Athletes seeking L-Glutamine to support post-workout muscle recovery
  • Adults looking to maintain gut lining integrity with L-Glutamine
  • Those supporting immune function during periods of intense physical training
  • Fitness enthusiasts who may help maintain nitrogen balance with L-Glutamine

Cautions

  • Known allergy to any ingredient (check label)
  • Currently pregnant or breastfeeding (consult healthcare provider)
  • Taking prescription medications (check for interactions)
  • Under 18 years of age (unless recommended by pediatrician)

Frequently Taken Together

Gut Repair Stack
Zinc Carnosine
Glutamine fuels enterocytes; zinc carnosine repairs the mucosal barrier.
Metagenics - Zinc Carnosine Complex
$65.99
Microbiome Support
Prebiotic Fiber
Combine substrate fuel for both gut cells and beneficial bacteria.
Metabolic Maintenance - BioMaintenance™ Prebiotic + Fiber
$55.99

Frequently Asked Questions

  • Store in a cool, dry place away from direct sunlight. Most supplements are stable at room temperature (59-77°F). Keep the bottle sealed between uses. Check the label for any specific storage requirements — some probiotics and oils require refrigeration.

  • Most supplements can be taken together safely. However, some minerals compete for absorption (zinc and iron, calcium and magnesium) and should be taken at different times of day. If you're taking prescription medications, consult your healthcare provider about potential interactions.

  • Most supplements benefit from consistent daily use over 2-3 months to achieve full effect. Some (like vitamins and minerals) can be taken indefinitely as part of a daily routine. Others (like specific herbs) may benefit from cycling. Follow the product's recommended protocol or consult a practitioner.

  • Fat-soluble supplements (vitamins A, D, E, K, omega-3, CoQ10) should be taken with a meal containing fat. Water-soluble supplements (B vitamins, vitamin C) can be taken anytime. Minerals are generally best absorbed with food. Probiotics should be taken with or just before a meal. Check the product label for specific timing recommendations.

  • Track your specific health goals — energy levels, sleep quality, joint comfort, digestion, mood, etc. Most supplements take 2-8 weeks for noticeable effects. For objective measurement, baseline lab tests before starting (and repeat at 3 months) provide definitive evidence. The Gabriel Score incorporates clinical evidence for expected outcomes.

Real Reviews. Real Sources.

4.7
1299 reviews
5 star
75%
4 star
15%
3 star
5%
2 star
3%
1 star
2%
All (1299)
0 Clinical Research
iHerb
0 iHerb
Amazon
1298 Amazon
0 Practitioners
Reddit
1 Reddit
X
0 X
TikTok
0 TikTok
Instagram
0 Instagram
Substack
0 Substack
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Apotheca's Analysis — 50+ Signals Across 6 Dimensions
L-Glutamine 500mg was scored across 50+ quality signals spanning manufacturing standards, lab verification, review consensus, practitioner confidence, community sentiment, and transparency. The Gabriel Score of 83 reflects data aggregated from 2 independent sources and 1299 total reviews. No brand can pay to influence this score.
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Compatibility Guide

Compatibility Data Loading

Apotheca is analyzing ingredient interactions, stacking compatibility, and timing recommendations for NOW Sports - L-Glutamine 500mg. This data will be available soon.

Research Behind This

NOW Sports Product Quality Assessment
Gabriel Score Analysis
This product has been evaluated across 50+ quality signals including third-party testing, manufacturing standards, ingredient sourcing, and clinical evidence. NOW Sports products are analyzed against our comprehensive database of practitioner-grade supplements.
Practitioner Network Endorsement Data
Apotheca Practitioner Intelligence
NOW Sports is referenced across our practitioner network of clinical recommendations, YouTube health channels, and professional forums. Endorsement patterns are aggregated to assess real-world clinical confidence.

Practitioner Insights

Who This Is For

✓ Great For

Anyone looking for practitioner-grade supplement
Those who prioritize quality and transparency in supplements
People following a health protocol designed by their practitioner
Adults invested in long-term health optimization

⚠ Important Notes

Always consult your healthcare provider before starting any supplement
Check for interactions with current medications
If pregnant or nursing, seek professional guidance first
Compare options using Apotheca's AI to find the best fit for your goals
NOW Sports is part of Gabriel's curated marketplace of practitioner-grade supplement brands. Every product from NOW Sports is evaluated across 50+ quality signals including manufacturing standards, ingredient sourcing, third-party testing, and clinical evidence.
Gabriel VerifiedQuality Analyzed

† 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.

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NOW Sports
NOW Sports - L-Glutamine 500mg
Gabriel Score
Strong quality signals. Meets recommended thresholds across most pillars.
Last updated: June 05, 2026
Score Breakdown
Manufacturing & GMP
57
Lab Verification
78
Review Consensus
100
Practitioner Confidence
50
Community & Social
64
Transparency
68
Consumer & Practitioner Intelligence
★★★★☆ 4.7 from 1299 reviews across 2 sources
Amazon 1298Community 1+
Aggregated from verified purchases, practitioner clinical notes, and real-world outcome data
Scored across 50+ quality dimensions from 15+ independent databases. No brand can pay to influence their score. No sponsored rankings. Ever.
See how this product scores against your health profile · How the Gabriel Score works