L-Glutamine 500 mg
Source Naturals
L-Glutamine 500 mg
4.7
★ ★ ★ ★ ★
(525 ratings)
Glutamine 500 mg
Score 25
This L-Glutamine product offers a minimal 500mg dose per tablet, falling far short of typical therapeutic recommendations for its intended goals and becoming cost-prohibitive for effective daily use compared to higher-dose powder options.
Quantity: 100 Tablet(s) • (100 servings)
Goals: flag Digestive Health flag Immunity flag Detoxification
leaderboard Score 25
This L-Glutamine product offers a minimal 500mg dose per tablet, falling far short of typical therapeutic recommendations for its intended goals and becoming cost-prohibitive for effective daily use compared to higher-dose powder options.
insights Analysis
This Source Naturals L-Glutamine product provides a low dose of 500 mg per tablet, which is significantly below the generally recognized therapeutic dose of 5-10 grams (5000-10000 mg) often recommended by nutritionists and online communities for its stated goals of immunity, fitness, muscle gain, and digestive health. While the price per 500mg serving appears low at $0.09, achieving an effective daily dose would require taking 10-20 tablets, making it highly inconvenient and very expensive compared to powdered L-Glutamine alternatives. The tablet form also may not offer the same rapid absorption as micronized powders, further diminishing its appeal for therapeutic use.
- Very low price per individual 500mg serving, making it accessible for micro-dosing
- Convenient tablet form for small, occasional doses or for those who prefer pills over powder
- Extremely low dose per serving (500mg) for most therapeutic applications, requiring many tablets daily
- High cost to achieve an effective daily dose (e.g., 5g) compared to bulk L-Glutamine powders
- Tablet form may have slower dissolution and potentially less bioavailability than micronized powder
- Users seeking significant benefits for immunity, fitness, muscle gain, or digestive health should be aware that the 500mg dose is likely insufficient and would require multiple servings daily, incurring substantial cost.
$9.22($0.09 per serving)
 iHerb | $ 9.22 | |
 Amazon | $ 12.03 |
Ingredients
| Ingredient | Amount per serving |
|---|---|
L-Glutamine | 500 mg |
Categories
Glutamine 30
As a pure L-Glutamine product, it meets the basic collection requirement, but the very low dosage per serving makes it a less practical and cost-effective option compared to other Glutamine supplements offering higher, more therapeutically relevant doses.
Goals
While L-Glutamine supports immune cell function, the 500mg dose is substantially lower than amounts typically shown to provide significant immune boosting benefits, making it less effective than higher-dose alternatives.
For fitness and recovery, L-Glutamine doses of 5g or more are usually recommended to impact performance or reduce muscle soreness; this 500mg dose is largely insufficient for noticeable effects.
L-Glutamine is a vital fuel source for intestinal cells and helps maintain gut barrier integrity, but 500mg is unlikely to provide substantial benefits for digestive issues or gut healing where higher doses (5g+) are typically used.
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89 Value
Micronized L-Glutamine 1000 mg
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(1738 ratings)
Provides double the dose (1000mg) in a micronized form, which may improve absorption, for a very reasonable increase in price per serving compared to the original 500mg capsule.
80 Value
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Glutamine Pure Powder 5000 mg (5 g)
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(704 ratings)
Provides an even higher 5000mg dose of pure L-Glutamine powder, offering maximum potency and flexibility in dosing for intensive needs like muscle recovery or digestive support.
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The Original Watermelon Explosion
XTEND
4.5
★★★★★
(46842 ratings)
Goes beyond pure L-Glutamine by including 2500mg of L-Glutamine along with BCAAs and electrolytes, making it a superior choice for muscle gain, recovery, and hydration, directly addressing fitness goals.