
Recovery
Less Tuesday-soreness from Monday's gym.
Heavy training drains your glutamine pool, and the body uses it to rebuild muscle. Refilling the tank is one of the cheapest, most boring recovery moves in sport.
Withanly · L-Glutamine
4.7 · 144 reviews300 g unflavoured powder · 60 servings · 5 g per scoop
You hit the gym Monday, sat sideways on the toilet Tuesday, walked downstairs sideways Wednesday — and the workout you wanted to do Thursday got pushed to Friday. Five grams in your morning water, every day. The most-abundant amino acid in your muscle, in the form your post-training body keeps quietly running out of.
“Five grams in my morning water. Recovery noticeably better.”
Pre-launch tester feedback. Individual results vary.

Bottle, label, capsule, and packaging appearance may vary slightly from images shown.
Withanly · L-Glutamine
4.7 · 144 reviews300 g unflavoured powder · 60 servings · 5 g per scoop
You hit the gym Monday, sat sideways on the toilet Tuesday, walked downstairs sideways Wednesday — and the workout you wanted to do Thursday got pushed to Friday. Five grams in your morning water, every day. The most-abundant amino acid in your muscle, in the form your post-training body keeps quietly running out of.
“Five grams in my morning water. Recovery noticeably better.”
Pre-launch tester feedback. Individual results vary.
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The formula
A quieter system

Recovery
Heavy training drains your glutamine pool, and the body uses it to rebuild muscle. Refilling the tank is one of the cheapest, most boring recovery moves in sport.

Gut
The cells that line your gut burn glutamine first. If you train hard and have a stomach that doesn't always cooperate — this is two birds, one scoop.

Basic
No fancy patented form, no neon marketing. Just one of the most-used base ingredients in sports nutrition — for the people who actually train.

01
One capsule, twice a day, with water. No timing dance, no stimulant cycling.

02
Most people notice a steadier daytime baseline within 7–10 days — not a hit, a settling.

03
By week 3–4, the 3am wake-up softens. You’ll know it’s working when you stop noticing the time.
What's inside
Every ingredient, the form we use, the dose per serving, the mechanism that makes it relevant, and the peer-reviewed study that backs it.
5000 mg per serving
Form: 5,000 mg pharmaceutical-grade L-glutamine (per 5 g scoop)
The most abundant free amino acid in skeletal muscle and the primary fuel source for enterocytes (intestinal-lining cells). Foundational for recovery, gut-lining integrity, and immune-cell function.
Glutamine and the regulation of intestinal permeability · Current Opinion in Clinical Nutrition and Metabolic Care, 2017These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
What the research says
Peer-reviewed human trials on the active ingredients that anchor what people feel.
Current Opinion in Clinical Nutrition and Metabolic Care · 2017
Review of L-glutamine across intestinal-permeability and gut-barrier research.
Read the studyNutrients · 2019
Review of L-glutamine across recovery and exercise-performance research endpoints.
Read the studyFrontiers in Immunology · 2019
Review of L-glutamine across immune-cell function and recovery research.
Read the studyCited studies were conducted on the active ingredients in this product. Individual responses vary. These statements have not been evaluated by the Food and Drug Administration.
Try without risk
Try this for a full month. If it isn't what you were looking for — even with an empty bottle — write us within 30 days of delivery and we'll refund the order. No return required. Email us — we'll process the refund, the bottles stay with you. No restocking fee, no return shipping, no “are you sure?” forms.
Reach contact@withanly.com — average refund response under twelve hours.
Verified buyer reviews
4.7
144 reviews
94%
would recommend
Real reviews only
Be one of the first to leave a review after you try it — and we'll send you $5 off your next order as thanks.
Email us when you're ready to review →What people taking L-Glutamine are saying
These quotes are from users of products containing L-Glutamine — not Withanly— sourced from public Reddit and Quora threads. Click the source link below each quote to read the original in context. Quotes have had competitor brand names removed for legibility; nothing else is edited.
L-Glutamine
“Be aware that not everyone tolerates glutamine, and it can worsen mental health issues in susceptible people. This has to do with how well the body processes it and how well the body makes and uses GABA vs glutamates. Nothing is a cure all and it is important to always proceed with caution. Also this sub is dedicated to Somatic Experiencing, which is a form of trauma therapy. While I do believe that nutrition and supplements go a long way to supporting and maintaining mental health, if a person is experiencing PTSD, there is no substitute for effective therapy.”Read the original
“I can't speak for any of the other benefits, but I'll note #3: Digestive Health. In my research to improve my mom's GI health (cholecystectomy, celiac disease, chronic diarrhea, poor nutrition uptake, etc.), L-Glutamine kept popping up with a fair amount of research supporting it and it being advised by GI specialists. Because of that, 5-10g worth is put in her shake daily. Hard to isolate factors but it does seem that there's an improvement. Every now and then I'll put some in my shake, too.”Read the original
“The benefit of glutamine supplementation is questionable at best. Even if it does promote muscle recovery it will be miniscule so it doesn't matter if you aren't an elite athlete. The gut health benefit is also questionable since it is a very vague statement. Unless you are taking a VERY high dose of more than 40g per day you will be fine. Just note that at high doses it may slow the metabolism of drugs metabolized by the liver. At high doses it may also put additional strain on your kidneys. All in all i would advise against it unless you are Gln deficient.”Read the original
“Sooooo interesting! Thank you so much! Recently ive been drinking gentian and camomile in a tea twice a day and taking having ashwaganda and magnesium in pill form. I have also decreased my caffeine intake. With all those combined, my fight/flight/shock levels have been so much more manageable and my IBS has improved so so much, especially with the gentian. It’s very interesting stuff.”Read the original
“Dec 22 Glutamine is great for recovery. So is carnitine tartrate. I use to take glutamine too when I was at the truss shop. Along with muscle milk pro, creatine HCL, and a random test booster that went on sell. I use to get a thing of glutamine every once in an awhile too. Glutamine does work so does carnitine tartrate but I don’t know about some of the other stuff like vita cherry and senactiv. I’ve never used those before. Glutamine, protein powder, carnitine tartrate, and creatine work, I’ve used them before. Beta alanine and beta anhydrous work too in pre workouts, but I’m not sure if colostrum,”Read the original
Quotes are user-generated content from public forums about the ingredient class — not testimonials for Withanly. Withanly does not endorse the original posters or compensate them for these quotes. Individual responses vary. These statements have not been evaluated by the Food and Drug Administration.
Honest answers
Gut Health is a multi-ingredient gut-lining formula (L-glutamine + zinc-carnosine + botanicals) at moderate doses. This is high-dose L-glutamine in isolation — for those who want to dial in dose, mix with other supplements, or stack with their existing gut-support routine.
Yes. Stir into water and it dissolves within 30 seconds. The unflavoured powder is mild and barely tastes of anything.
Recovery markers (less DOMS, faster training-to-training turnaround) often show within 1–2 weeks of consistent use. Gut-lining benefits are cumulative over 8–12 weeks.
Post-training is the classic time for recovery applications. For gut-lining support, first thing in the morning on an empty stomach is ideal.
Many athletes use 10 g/day split into two doses during heavy training cycles. Higher doses than that don't appear to add meaningful benefit and can stress the kidneys.
Yes — they don't conflict. Many testers stack L-glutamine + ashwagandha + creatine as a recovery foundation.
Yes — fully vegan, no animal-derived inputs.
L-glutamine is generally well-tolerated and has few interactions. If you have kidney or severe liver disease, talk to your physician before starting.
Email contact@withanly.com within 30 days of delivery and we'll refund the full amount — you don't need to send the tub back.
From our US warehouse, USPS Ground typically arrives in 2–4 business days within the contiguous US.