SKU: 18767607394

Core Nutritionals | Glutamine | 60 Servings

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Description

Core Nutritionals | Glutamine | 60 Servings5g straight L Glutamine. No secrets. Recovery without the BS. Core Nutritionals Glutamine keeps it simple with one ingredient: a full 5,000mg scoop of L Glutamine, no hidden blends, no extra stuff getting in the way. That's a smart move. Lots of products bury glutamine in fancy mixes or hype it up for muscle gains, but Core does it right: one thing, a solid dose, total honesty. L Glutamine is the most common conditionally essential amino acid in your

5g straight L-Glutamine. No secrets. Recovery without the BS.

Core Nutritionals Glutamine keeps it simple with one ingredient: a full 5,000mg scoop of L-Glutamine, no hidden blends, no extra stuff getting in the way. That's a smart move. Lots of products bury glutamine in fancy mixes or hype it up for muscle gains, but Core does it right: one thing, a solid dose, total honesty.

L-Glutamine is the most common conditionally essential amino acid in your body – that means your body makes it, but needs more during tough times. Think heavy workouts, long sessions, dieting, sickness, gut problems, or just pushing hard – that's when demand spikes. It acts as a big nitrogen mover and fuel for fast-growing cells, like those in your gut lining (enterocytes) and immune fighters (lymphocytes). That's why it's still a player in sports supps. Not for packing on muscle if you're healthy and eating right – studies show it's not great for that. But it shines for recovery during stress, keeping your gut barrier strong, and boosting immune function when training ramps up.

That 5,000mg dose is spot on – it's the low end of the 5g to 15g range from studies. No skimpy amount here. It's a real daily scoop for gut and recovery vibes. You probably won't feel a big rush like with caffeine or pump stuff. Glutamine's more low-key. What you'll notice is how it slots into your recovery routine

Key Highlights

  • 5,000mg L-Glutamine per scoop – that's a real dose hitting the start of the 5g to 15g research range. Not some weak add-on; it's solid for athletes grabbing glutamine to help recovery, gut health, and staying strong during intense training.
  • Just one ingredient – no mixes, no mystery amounts, no label tricks. You see exactly what's in every scoop, making it easy to check against studies and stack with your other stuff.
  • Based on a conditionally essential amino – glutamine's the most plentiful in your body, but you might need extra during killer stress or workouts. Adding it helps when training and recovery push harder than your body can handle alone.
  • Helps your gut where it counts – glutamine fuels enterocytes, the quick-turnover cells lining your intestines. Great for athletes whose stomach gets wonky from hard training, trips, or strict dieting.
  • Backs up immune-heavy training – glutamine gets used a ton by lymphocytes and other immune cells. Makes it a smart add when your workouts crank up the body stress.
  • Keeps it real on the science – glutamine's useful, but not for everything. Studies back it more for gut strength, immune help in stressed folks, and recovery in tough spots than for muscle or fat loss in healthy people.
  • No prop blend nonsense – tons of recovery supps hide glutamine in amino piles, so you can't tell if it's enough. Here, the full 5,000mg is right there, standing alone.
  • Stacks easy with protein, EAAs, BCAAs, and hydration gear – glutamine plays nice with branched-chain aminos and electrolytes for better recovery. Use it after workouts or between meals without clashing.

Who Is This For?

  • Bodybuilders in big volume phases racking up damage and fatigue. The 5,000mg L-Glutamine gives a easy daily boost that fits around their training and food without clashing with pre or pump stuff.
  • Endurance athletes putting in long runs, rides, or cardio that stresses the whole body. Glutamine's role in gut and immune support makes this a go-to when miles and time add up.
  • CrossFit and functional folks doing back-to-back intense workouts with short rest. A clear 5g glutamine scoop adds smart recovery when training gets dense and hits digestion or readiness.
  • Lifters cutting calories for a show or shoot. Hard dieting ramps stress and can make gut stuff iffy, and glutamine's a solid pick for those phases.
  • Athletes who like building their own stacks over mystery blends. This gives exact control: a research-level glutamine dose to pair with creatine, EAAs, hydration, or protein without extras.
  • People whose stomach gets shaky in heavy training, travel, or big eating phases. Glutamine fuels intestinal lining cells (enterocytes), so it matches that need.

How to Use

Mix 1 scoop with water, a shake, or drink once a day. Post-workout or between meals is usually best, but consistency beats perfect timing since glutamine isn't a stim with a tight window. If you're new to amino powders or have a touchy gut, try half a scoop first to check it out, but 5g is standard and works for most. Shaker's easiest for mixing, but a spoon in liquid does the trick. Empty stomach or with food – both fine, doesn't mess with how it works. Stacks awesome with protein, creatine, EAAs, BCAAs, and electrolytes since it covers different ground. No need to cycle, especially in tough training stretches where you want it steady. Keep it cool and dry with the lid on tight for best powder.

What to Expect

First 0-10 minutes: mix and down it easy, no stim kick, no big feel expected. 10-40 minutes in: still no rush, since L-Glutamine isn't for energy or pumps; it's about recovery processes, not instant vibes. First few days: it's all about easy routine – nailing that 5g daily without hassle. Days 1-7: slots right into your recovery flow, especially with high volume or diet stress. Weeks 2-4: shines in steady support for gut cells and immune recovery during heavy stress. This is background help, not front-line performance, and that's why the right person will dig it.

Key Ingredients

  • L-Glutamine — 5000mg — Clinically aligned glutamine support for recovery and gut resilience

Frequently Asked Questions

How much glutamine is in each serving of Core Nutritionals Glutamine?

Each scoop provides 5,000mg of L-Glutamine. That matches the low end of the clinically used 5g to 15g range, making it a legitimate standalone dose rather than a token amount hidden inside a blend.

Is 5 grams of glutamine an effective dose?

Yes. Five grams is a research-relevant serving and a common starting point for athletes using glutamine for gut support, recovery support, and resilience during physically stressful training phases.

Will Core Nutritionals Glutamine help build muscle?

Not directly in the way creatine or adequate total protein intake do. The evidence does not support glutamine as a strong standalone muscle-building ingredient in healthy athletes, but it can still be useful for recovery support, gut lining support, and immune-demanding training periods.

What does glutamine actually do in the body?

L-Glutamine is the most abundant conditionally essential amino acid in the body and is used heavily by gut lining cells and immune cells. It also plays a role in nitrogen transport and whole-body amino acid metabolism, especially when physical stress is high.

When should I take Core Nutritionals Glutamine?

Post-workout is a common and practical option, but the most important factor is daily consistency rather than exact timing. It can also be taken between meals, with a protein shake, or at another convenient time in your routine.

Can I stack this with creatine or protein?

Yes. Core Nutritionals Glutamine stacks very well with creatine monohydrate, whey or isolate protein, EAAs, BCAAs, and hydration formulas because it serves a different role and does not duplicate their primary mechanisms.

Will I feel anything right away from this formula?

Probably not, and that is normal. Glutamine is not a stimulant, nootropic, or pump ingredient, so its value is in consistent recovery-oriented support rather than an immediate buzz or performance sensation.

Does this product contain a proprietary blend?

No. This is a fully transparent single-ingredient formula with 5,000mg of L-Glutamine per serving and no proprietary blend hiding the dose.

Is this a good option during a cut or contest prep?

Yes, that is one of the more sensible use cases. During calorie restriction and hard training, recovery stress and digestive fragility often increase, and glutamine is often used to support those systems.

Do I need to cycle glutamine?

No standard cycling protocol is required. Since glutamine is an amino acid used for recovery support rather than a stimulant or hormone-active ingredient, it is generally used continuously during demanding training blocks.

Shipping Notes
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Pete V
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I think these shoes are excellent. I ordered a pair which arrived after 2 days. Contrary to some reviews I do not find these water shoes a tight fit at all. And I have bunions. Indeed I find them very comfortable. I have used them in water and as advertised they drain dry pretty quickly. In short I am delighted with the shoes. So much so that I ordered a second pair. Different colour of course. They just arrived and I am wearing them now. Same size and just as comfortable. Thank you.
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Reviewed in the United States on May 30, 2026
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K.C.
West Palm Beach, US
★★★★★ 1
One day of use, then it rubbed against my toes and caused cuts
Size: 9-9.5, Color: Black Denim Blue, Size: 9-9.5, Color: Black Denim Blue
I got these right before a trip to Costa Rica where we would be doing a lot of hiking, some tubing, and be in and out of water. They felt great when I first tried them on and I was optimistic. Our first day, we hiked a total of about 5 miles in the forest and along a river, with some swimming in pools throughout the hike. These weren't difficult trails, but a mix of gravel, rock, dirt, etc. The shoes felt fantastic and were comfortable all day. Later that evening, after they had mostly dried out, we did another mile or so to some other pools and I had no problem. During that hike I was so happy I was actually talking to my kids about what great things I was going to say in a review. The following day however, as soon as I put on the sandals, just walking to the hotel pool, the top of the shoe, just above my big toes, was bending and rubbing against my toes. It was very noticeable and I took them off and made sure there was no sand or anything else causing the irritation. I had no other choice that day and we ended up back on a similar trail, hiking a total of about 1.5 miles, with it rubbing against my toes the entire time. I tried both tightening and loosening the shoes and changing my stride to step more flat footed so they wouldn't bend at the back of my step, but that didn't help. Neither did getting them wet again, hoping to soften something up. By the time we were half way through that hike, there were visible raw spots on top of both my big toes. By the time we were done, they had become sores and very painful. The following day, we walked on the sidewalk to breakfast about three blocks away and it hurt bad enough that I found a store and bought a pair of flip-flops instead. I haven't worn the sandals since. I can't tell exactly what's going on inside the shoe, but I think the leathery part of the shoe is pushing down at the natural break in the toe area when I step, and the mesh is rubbing. Since I've worn them outside and been swimming in them, I can't return them, but they're basically useless after one good day.
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Reviewed in the United States on November 29, 2025
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Amazon Customer
Natrona Heights, US
★★★★★ 5
Great headphones!
Color: Black
Great headphone! They work well and sound quality was pretty good. Definitely worth the money. I love that they’re not inserted into the ear. It allows me to hear things going on around me but not so much that I can’t hear my music. They’re pretty comfortable too! I have smaller ears and the earbuds that you put into your ear tend to hurt after some time. These typically don’t.
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e03
Lowell, US
★★★★★ 5
If you’re curious about open ear earphones give these a try
Color: Black, Color: Black
I don’t normally review but these are genuinely great quality, especially for the price! I was skeptical about open ear for sound quality/comfort to be honest and the first couple days I used them they were a but uncomfortable and my ears hurt after a while, but once you figure out how to fit them properly and get used to it they’re actually incredibly comfortable, so much that I often forget I have them on lol. The part that hooks on your ear is a soft bendy plastic, silicone-like so it’s pretty forgiving for different ear shapes. I love the dual connecting Bluetooth as well, super useful for switching between tasks on different devices. The sound quality is pretty on par with higher end options and it doesn’t really leak sound much either, even though it’s open ear which is great, also allows you to still hear your surroundings really well so good for commuting/out and about/office work. Great battery life and they charge quickly in the case, I work in video editing so use them pretty much all day and with the case they last several days before needing a recharge. I’ve had them for a couple months now I think and I’m really glad I went with this option. Absolutely the best option I’ve tried around this price point, anker products as a whole I’ve found are really great quality at a very reasonable price.
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Reviewed in the United States on April 16, 2026
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Diem
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COMFORT KING 👑✨
Color: White
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