L-glutamine powder vs capsules: what is the difference in price?
Per 5 g, the 27 powders we price run from $0.165 to $1.05, and the 5 capsule products run from $0.433 to $2.89. By each label's own serving, 5 g of L-glutamine is 6 to 10 capsules. As powder it is 1 to 2 scoops, 2 to 3 teaspoons or 1 heaping teaspoon, in whichever unit the label measures.
Each format is ranked only against its own kind on the category page; here the two sit side by side and neither is ranked against the other. The ranges and tables here are before delivery and come from each brand's own panel and store. 5 g is the unit this site prices L-glutamine against so that different serving sizes compare at all; it is not a suggested dose.
Powders
Capsules
| Product | Per 5 g | Capsules per 5 g | Container | Verification |
|---|---|---|---|---|
| BulkSupplements.com L-Glutamine 5,000 mg (360 capsules) | $0.433 | 6 | $25.97 | D |
| Nutricost L-Glutamine 800 mg (180 capsules) Panel also prints acacia fiber (Acacia senegal) (gum) 30 mg | $0.624 | 6.3 | $17.97 | D |
| Optimum Nutrition Glutamine Capsules (240 capsules) | $0.958 | 10 | $22.99 | D |
| Double Wood Supplements L-Glutamine 1,000 mg (120 capsules) | $1.25 | 10 | $14.95 | D |
| Thorne L-Glutamine (90 capsules) | $2.89 | 10 | $26.00 | C |
Where to buy: the L-glutamine shortlist
The pick is the cheapest certified product, at the exact package sold where the certifier names packages, with no adverse finding on record, a price its retailer let us read recently, and no more than a year’s supply at the label’s serving; per delivered dose where the retailer publishes a delivery rate. Where none does, it is the cheapest such product before delivery, and it says how far the order is from free delivery. It is the same pick the category page shows. Any answer shown beside it is the cheapest under a different rule and says so on its own line; answers that cost more than the pick fold under one line until you ask for them.
How these lines are chosen
Among 27 products and 27 retailer listings we track; Amazon and Walmart are not included. A month is thirty doses of the size in the heading, priced the same way as the per-dose figure beside it. “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below.
How these lines are chosen
Among 5 products and 5 retailer listings we track; Amazon and Walmart are not included. A month is thirty doses of the size in the heading, priced the same way as the per-dose figure beside it. “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below.
A pick has to be independently certified, at the exact package sold where the certifier names packages, with no recall or failed test, a price its retailer let us read recently, and no more than a year’s supply at the label’s serving. Where the retailer publishes no delivery rate, the pick is priced before delivery and says so. Nothing we track here clears all of those yet. Each of these misses at least one bar, and says which:
Full comparison of every product in this category: L-Glutamine. Every question we answer: the question index.
What this rests on: prices we last recorded at the retailer named on each product page, which go stale, and each page says when it was checked; the products we track, not every product sold, and Amazon and Walmart are not among the stores; listings and labels read at the source, each linked from the page. Found an error? Tell us. The full method: How we compare.