L-glutamine powder vs capsules: what is the difference in price?
Latest price check:
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, before delivery | Capsules per 5 g | Container | Verification |
|---|---|---|---|---|
| BulkSupplements.com L-Glutamine 5,000 mg (360 capsules) | $0.433 | 6 | $25.97 | A? |
| Nutricost L-Glutamine 800 mg (180 capsules) Also contains, not counted in the price per dose: 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 | A? |
Where to buy: the L-glutamine shortlist
The pick is the cheapest product that clears four bars:
- certified, and named at the exact package where the certifier names packages
- no adverse finding on record
- a price its retailer let us read recently
- no more than a year’s supply at the label’s serving
It is ranked 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 other answer beside it is the cheapest under a different rule, and its own line names that rule. Answers that cost more than the pick are folded into one line until you open it.
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 5g, priced the same way as the figure beside it. It is worked out before that figure is rounded, so it can differ from thirty times it by a few cents. It is not thirty servings where a serving holds more or less than 5g. “Delivery known” ranks only products whose retailer publishes a delivery rate. A cheaper tested product whose rate is not published gets a line of its own. Every package we price, with its delivery terms, is on the L-Glutamine page.
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 5g, priced the same way as the figure beside it. It is worked out before that figure is rounded, so it can differ from thirty times it by a few cents. It is not thirty servings where a serving holds more or less than 5g. “Delivery known” ranks only products whose retailer publishes a delivery rate. Every package we price, with its delivery terms, is on the L-Glutamine page.
A pick has to clear four bars:
- independently certified, and named at the exact package where the certifier names packages
- no recall or failed test
- a price its retailer let us read recently
- 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 are the last ones we recorded at the retailer named on each product page. Prices go stale, so each page says when it was checked. We track some products, not every one sold, and Amazon and Walmart are not among our stores. Listings and labels are read at the source, and each page links to them. Found an error? Tell us. The full method: How we compare.