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L-Glutamine 500 mg

Source Naturals
4.7
★ ★ ★ ★ ★
(570 ratings)
Glutamine 500 mg
Product Image
Score78
The simple label and tablet format work for low-dose use, though the 500 mg amount creates a high tablet burden at larger intakes.
How scoring works
Quantity:100 Tablet(s) • (100 servings)
Goals:

Score 78

The simple label and tablet format work for low-dose use, though the 500 mg amount creates a high tablet burden at larger intakes.
How scoring works
$10.00($0.10 per serving)
Amazon
$ 10.00
iHerb
$ 10.24
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Analysis

Each tablet provides 500 mg of L-glutamine, which makes the labeled serving modest. A multi-gram routine would require several tablets and may feel cumbersome for daily use.

The active ingredient and amount are plainly listed without an added blend. No premium purity grade or enhanced processing is identified, so ingredient quality appears standard.

The basic formula offers acceptable value when used in small amounts. Higher-dose users may prefer a concentrated capsule or powder to reduce the number of units per day.

Who is it for
  • People who prefer tablets
  • People starting with a modest glutamine amount
Best for
  • Low-dose supplementation
  • Incremental serving adjustments

Pros

  • Clearly disclosed L-glutamine amount
  • Simple single-active formula
  • Useful for adjusting intake in small steps

Cons

  • Low amount per tablet
  • Several tablets needed for multi-gram use
  • No stated premium ingredient grade

Nutrient quality

80 High impact

The L-isomer is clear, but no premium grade or processing detail is supplied; the tablet amount is modest and requires several tablets for targeted use. The disclosed glutamine amount is not unnecessarily aggressive; l-glutamine directly fits a single-ingredient glutamine supplement; the single-active formula contains no filler ingredients.

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Ingredient transparency

76 High impact

Every listed active has a specific amount; no proprietary blend hides key doses. L-glutamine is easy to understand, while purity and sourcing details are absent; serving directions and inactive ingredients are not supplied.

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Customer satisfaction

71 High impact

The supplied aggregate average is favorable, though no individual feedback is available; the large rating sample improves confidence in the aggregate average, but no individual feedback is supplied. Detailed feedback is absent, so repeated complaints cannot be assessed; real-world fit with the intended purpose remains uncertain.

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Value for money

85 Highest impact

Basic quality provides fair value at the current positioning; the cost per useful intake is moderate rather than exceptional. The single-active formula contains no filler ingredients; several comparable glutamine products provide stronger dose convenience.

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Ingredients

IngredientAmount per serving
L-Glutamine
500 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free Vegetarian
Report overview
Glutamine · 500 mg OverallScore62
B- Active Ingredient Quality & BioavailabilityD Dose, Safety & Label TransparencyB- Value
The clearly labeled L-glutamine offers a straightforward single-ingredient option, but no premium purity grade is stated. A serving is modest, so several tablets are needed to reach a commonly targeted daily amount. Cost per gram is moderate for a simple formula.
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84 Performance

Glutamine Pure Powder 5000 mg (5 g)

Country Life
<p>Its label clearly provides 5000 mg of L-Glutamine, making it a more clearly defined glutamine option. Compared with the original, its ingredient and goal alignment is stronger, although the input does not provide independent testing or absorption evidence.</p>
84 Performance

L-Glutamine Pure Powder

Best Naturals
<p>Its label clearly provides 5000 mg of L-Glutamine, making it a more clearly defined glutamine option. Compared with the original, its ingredient and goal alignment is stronger, although the input does not provide independent testing or absorption evidence.</p>
80 Performance

Theracurmin & L-Glutamine

Natural Factors CurcuminRich
<p>Its label clearly provides 5000 mg of L-Glutamine, Micronized, making it a more clearly defined glutamine option. Compared with the original, its ingredient and goal alignment is stronger, although the input does not provide independent testing or absorption evidence.</p>
82 Budget

L-Glutamine Powder

Bluebonnet
<p>Its label clearly provides 5000 mg of L-Glutamine, Powder, preserving relevant glutamine coverage. It is not lower-cost than the original, but it is the closest remaining eligible fit for this category; the input does not provide independent testing or absorption evidence.</p>
82 Budget

Pharmaceutical Grade AjiPure L-Glutamine 500 mg

Swanson Ultra
<p>Its label clearly provides 500 mg of L-Glutamine, preserving relevant glutamine coverage. Compared with the original, it lowers the serving cost, although the input does not provide independent testing or absorption evidence.</p>
78 Budget

L-Glutamine 500 mg

NOW
<p>Its label clearly provides 500 mg of L-Glutamine, preserving relevant glutamine coverage. Compared with the original, it lowers the serving cost, although the input does not provide independent testing or absorption evidence.</p>
84 Value

Glutamine 300

PS ProSupps
<p>Its label clearly provides 4500 mg of L-Glutamine, keeping the formula relevant to glutamine. Compared with the original, the somewhat higher serving cost and ingredient detail create a useful quality-to-cost balance, although the input does not provide independent testing or absorption evidence.</p>
83 Value

Micronized L-Glutamine 1000 mg

Natural Factors
<p>Its label clearly provides 1000 mg of L-Glutamine, Micronized, keeping the formula relevant to glutamine. Compared with the original, the somewhat higher serving cost and ingredient detail create a useful quality-to-cost balance, although the input does not provide independent testing or absorption evidence.</p>
82 Value

L-Glutamine

Jarrow Formulas
<p>Its label clearly provides 1000 mg of L-Glutamine, keeping the formula relevant to glutamine. Compared with the original, the similar serving economics and ingredient detail create a useful quality-to-cost balance, although the input does not provide independent testing or absorption evidence.</p>
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