Online L-glutamine vendors
Jul 8 – Oct 25, 2026Updated Oct 25, 2026
Reviewed by Dimitry Apollonsky
Which brands AI mentions
Mentioned in
ChatGPTChatGPTGoogle AI ModeGoogle AI Mode
Widest split: BulkSupplements, 4% on ChatGPT and 71% on Google AI Mode.
- #1tiedNutricostChatGPT 65%Google AI Mode 95%
- #1tiedNOW FoodsChatGPT 83%Google AI Mode 71%
- #1tiedThorneChatGPT 65%Google AI Mode 67%
- #4tiedBulkSupplementsChatGPT 4%Google AI Mode 71%
- #4tiedDoctor's BestChatGPT 43%Google AI Mode 29%
Questions and answers
Google AI ModeOct 25, 2026
You can buy L-glutamine supplements online from
a variety of major retailers and supplement marketplaces. Options include:- Amazon : Find a wide selection of powders and capsules like Nutricost L-Glutamine Powder on Amazon.
- The Vitamin Shoppe : Order powders, tablets, and capsules directly through The Vitamin Shoppe L-Glutamine Selection with delivery or local store pickup options.
- iHerb : Browse international brands and micronized powders on the iHerb L-Glutamine Supplements Page.
- Target : Shop for various capsule and powder formulations via the Target L-Glutamine Search.
- Walmart : Look for budget-friendly and brand-name tablets and powders on the Walmart Glutamine Browse Page.
If you'd like, let me know:
- Do you prefer powder or capsules?
- Are you looking for unflavored or flavored options?
I can help you narrow down specific brands and pricing.
Sources cited in this answer5
ChatGPTOct 25, 2026
You can buy L-glutamine online from supplement brands, health retailers, and sports nutrition stores. It’s available as an unflavored powder or in capsules, depending on your preference.
Here are some good places to start, with prices found in the online listings.
Where to buy L-glutamine online
1. NOW Foods
Budget-friendly powder
$19.99
Listed price for 6 oz.
A straightforward, unflavored powder with 5 g per serving and no other ingredients.
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2. GNC
$44.99
Listed price for 180 servings
A sports nutrition option offering 5 g of L-glutamine per serving, with online ordering and store pickup options.
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3. GAT Sport
$19.99
Listed price; size may vary
Unflavored powder marketed as 5 g of L-glutamine per serving. The brand states that its product is third-party tested.
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4. Walgreens
$9.99
Listed price for 60 capsules, 500 mg each
Worth considering if you prefer capsules instead of mixing powder into a drink. Shipping availability varies.
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5. Natural Health Co.
Multiple brands and formulations
A useful option for comparing capsules and powders from brands such as Thorne, NOW Foods, and Pure Encapsulations.
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Which type should you choose?
- Powder: Often the better value per gram and easy to mix with water or a shake.
- Capsules: More convenient for travel and avoiding powder measurements.
- Quality assurance: Look for transparent ingredient labels and independent testing, such as NSF certification, when available. You can check products in the NSF Certified Dietary Supplements listings.
Prices and availability can change, so confirm the final cost and shipping at checkout.
One question: What are you planning to use L-glutamine for? I can narrow down the most suitable options.
What's your main goal?
Digestive or gut health
Exercise and muscle recovery
General nutrition
Something else
Preferred form
Powder
Capsules
Either is fine
Budget per bottle or tub
Under $15
$15–$30
$30–$50
Any budget
[Find the best options]
Sources cited in this answer11
- nowfoods.comL-Glutamine Powder | Amino Acid Support* | NOW Supplements
- nowfoods.comL-Glutamine Powder | Amino Acid Support* | NOW Supplements
- gnc.comGNC - L-Glutamine - Unflavored (180 Servings) | GNC
- gnc.comGNC - L-Glutamine - Unflavored (180 Servings) | GNC
- gatsport.comShop GAT Sport
- gatsport.comShop GAT Sport
Google AI ModeOct 16, 2026
L-glutamine is widely available in stock across major online retailers and supplement brands.
The following websites currently offer L-glutamine supplements in various forms (powders, capsules, and tablets):
- Amazon : Carries major brands like Nutricost L-Glutamine Powder , BulkSupplements, and Optimum Nutrition with various sizing options and fast shipping.
- Thorne : Offers professional-grade Thorne L-Glutamine Powder directly through their official site.
- Target : Stocks multiple brands including Pure Encapsulations, Nutricost, and Codeage for online fulfillment or local pickup.
- Walmart : Provides affordable choices like Spring Valley and Best Naturals.
- Instacart : Connects you to local grocery and pharmacy chains for same-day delivery.
If you can let me know whether you prefer powder or capsules and your preferred brand or budget , I can help you find a specific product match.
ChatGPTOct 16, 2026
I found several websites selling L-glutamine, including powder and capsules. Here are the best options I could verify from current online listings, with prices and stock status where available. Inventory can vary by shipping ZIP code.
L-glutamine available to order
1. Vitacost — NOW Foods powder
$12.61
(Add to cart)
6 oz (170 g) of L-glutamine powder. A budget-friendly option.
2. Target — NOW Foods powder
$15.99
(Listed in stock)
6 oz (170 g); sold and shipped by iHerb through Target.
3. Vitacost — Source Naturals powder
$9.43
(Add to cart)
100 g of powder. A lower-cost option if you want a smaller container.
4. GNC — Pro Performance powder
$44.99
(Listed in stock)
180 servings, 5 g per serving. GNC lists shipping and in-store pickup options, subject to location.
5. Vitacost — Country Life capsules
$17.19
(Add to cart)
100 vegan capsules, with 500 mg of L-glutamine per capsule.
My recommendation
- Best value: Vitacost NOW Foods powder at $12.61.
- Easy retailer option: Target at $15.99.
- Large supply: GNC's 180-serving powder at $44.99.
- Prefer capsules: Country Life through Vitacost at $17.19.
Stock and prices were based on the retrieved listings; confirm availability for your address before paying.
Do you want powder or capsules? I can narrow this down to the cheapest option that ships to your area.
Sources cited in this answer10
- vitacost.comNOW Foods Sports L-Glutamine Powder | 6 oz
- vitacost.comOrder from Vitacost
- target.comNOW Foods Sports, L-Glutamine Powder, 6 oz (170 g) : Target
- target.comNOW Foods Sports, L-Glutamine Powder, 6 oz (170 g) : Target
- vitacost.comSource Naturals L-Glutamine Powder | 3.53 oz
- vitacost.comSource Naturals L-Glutamine Powder | 3.53 oz
Also asked as
- Which online retailers carry L-glutamine?
