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Cheapest Glutamine on iHerb

Ranked by real cost per 100 mg of Glutamine — cheapest value first.

Prices updated Jul 25, 2026 · 7 products · Prices in USD

The priciest option here costs about 1,583.8× more per 100 mg of Glutamine than the best-value pick Metabolic Nutrition. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 100 mg
1
Metabolic Nutrition, Protizyme, Specialized Designed Protein, Strawberry Creme, 4 lb (1,820 g)
Metabolic Nutrition, Protizyme, Specialized Designed Protein, Strawberry Creme, 4 lb (1,820 g)
Metabolic Nutrition
4,281 mg5289.990.040View on iHerb →
2
Metabolic Nutrition, Protizyme, Specialized Designed Protein, Banana Creme, 2 lb (910 g)
Metabolic Nutrition, Protizyme, Specialized Designed Protein, Banana Creme, 2 lb (910 g)
Metabolic Nutrition
4,281 mg2649.990.045View on iHerb →
3
Metabolic Nutrition, Protizyme, Specialized Designed Protein, Peanut Butter Cookie, 2 lb (910 g)
Metabolic Nutrition, Protizyme, Specialized Designed Protein, Peanut Butter Cookie, 2 lb (910 g)
Metabolic Nutrition
4,281 mg2649.990.045View on iHerb →
4
Metabolic Nutrition, Protizyme, Specialized Designed Protein, Strawberry Creme, 2 lb (910 g)
Metabolic Nutrition, Protizyme, Specialized Designed Protein, Strawberry Creme, 2 lb (910 g)
Metabolic Nutrition
4,281 mg2649.990.045View on iHerb →
5
Maxi Health, Hydrolyzed Fish Collagen Powder™, 5.46 oz (155 g)
Maxi Health, Hydrolyzed Fish Collagen Powder™, 5.46 oz (155 g)
Maxi Health
970 mg1524.990.172View on iHerb →
6
Animal, PAK®, Ultimate Foundation, 44 Packs
Animal, PAK®, Ultimate Foundation, 44 Packs
Animal
83 mg2242.682.34View on iHerb →
7
BodyTech, Elite, Altered Amino ™, EAA & Test Booster, Cherry Slushie, 14.9 oz (423 g)
BodyTech, Elite, Altered Amino ™, EAA & Test Booster, Cherry Slushie, 14.9 oz (423 g)
BodyTech
3 g2539.9963.98View on iHerb →

How we rank Glutamine

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.