Glutamine
We’ve got a wide range of cutting-edge glutamine supplements in both powder and capsule form — the amino acid that naturally occurs in protein, and forms the building blocks of all-important new muscle in the body. A must whatever your training goals.
Glutamine can be found naturally in most meat, fish, and eggs, which also makes our range of supplements an excellent alternative for vegans and vegetarians.
Want to find out more? Check out our best amino acids page.
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Shop Glutamine at Myprotein
Glutamine is the most abundant amino acid found in muscle tissue and one of the most widely used amino acids in sport and fitness. As a conditionally essential amino acid, the body produces it naturally — but many athletes and gym-goers choose to supplement with l-glutamine as part of a structured nutrition routine. Available in both powder and tablet formats, the glutamine range makes it straightforward to fit into any lifestyle.
Whether you prefer the versatility of l-glutamine powder mixed into shakes or the convenience of tablets on the go, there's a format to suit. Each product is formulated by Myprotein's expert nutritionists to deliver pure, high-quality glutamine with no unnecessary extras — just the amino acid, in a form that works for you.
Who Glutamine Is For
Glutamine is a popular choice among gym-goers, endurance athletes, and anyone with an active lifestyle who wants to keep their amino acid intake topped up. It's particularly common in the stacks of those who train frequently, as glutamine levels in muscle tissue can drop with intense physical output. That makes glutamine supplements a practical consideration for anyone training hard across the week.
It's not limited to elite athletes either. Recreational gym-goers, those returning to training after a break, and people following high-volume workout programmes all regularly include glutamine as part of their broader supplement routine. Because it's unflavoured in powder form, it layers easily into existing protein shakes, smoothies, or water without altering the taste.
When to Use Glutamine
Glutamine can be taken at different points throughout the day depending on individual preference and routine. Many athletes choose to take it post-workout, adding l-glutamine powder directly to a protein shake or recovery drink as part of their after-training ritual. Others take it first thing in the morning or before bed to maintain consistent amino acid levels across the day.
Timing flexibility is one of the practical advantages of glutamine supplements. Tablets are especially convenient for those who don't always have access to a shaker — easy to take with water at any point during the day without any preparation needed. There's no single rule; consistency over time tends to matter more than the precise window.
Glutamine Benefits
The Most Abundant Amino Acid in Muscle Tissue
Glutamine is found in higher concentrations in muscle tissue than any other amino acid. This makes it a foundational part of many athletes' supplement stacks, particularly those focused on training volume and frequency. Supplementing with l-glutamine is a practical way to ensure consistent intake alongside diet.
Pairs Well with Protein
Glutamine is often stacked alongside protein supplements. Protein contributes to the growth and maintenance of muscle mass1, and many athletes include glutamine alongside their protein intake as part of a complete amino acid approach. Impact Whey Protein is a popular pairing, delivering high-quality protein that contributes to muscle growth and maintenance1.
Multiple Formats for Every Routine
The range includes both l-glutamine powder and l-glutamine tablets, giving you the option to choose based on how you train and when you supplement. Powder offers easy mixing into shakes or drinks; tablets deliver a measured dose wherever you are. Both formats provide 100% pure glutamine with no fillers.
Versatile Across Training Goals
Glutamine isn't tied to one specific training style. Weightlifters, endurance athletes, and those in team sports all include it in their routines. Because it's the most prevalent amino acid in muscle tissue, it fits naturally into supplement stacks across a wide range of sport and fitness goals.
Popular Picks
L-Glutamine Tablets — L-Glutamine Tablets put protein to work for your training, making them a solid fit whether you're lifting, running, or anything in between.
L Glutamine Powder — The most popular amino acid in powder form, L Glutamine is built for any sport or workout goal and works for vegans and vegetarians too.
NAC Powder — Pure 100% N-Acetyl L-Cysteine in powder form, NAC Powder is an easy addition to your daily shakes or smoothies.
FAQs
What is l-glutamine?
L-glutamine is the most abundant amino acid in human muscle tissue and one of the 20 amino acids the body uses to build proteins. It's classified as conditionally essential — the body produces it, but many athletes choose to supplement during periods of intense training. It's available in powder and tablet forms and is one of the most popular amino acid supplements in sport and fitness.
What's the difference between glutamine powder and glutamine tablets?
Glutamine powder and glutamine tablets both deliver the same amino acid — the difference is purely in format. L Glutamine Powder is ideal for mixing into shakes, smoothies, or water, making it easy to combine with other supplements. L-Glutamine Tablets are pre-dosed and portable, making them a practical choice when you're training away from home or don't want the hassle of measuring powder.
What is glutamine powder used for?
Glutamine powder is used by athletes and gym-goers as a way to keep amino acid intake consistent alongside a training and nutrition plan. Many people mix it into post-workout shakes, combine it with protein powder, or simply stir it into water throughout the day. Because it's unflavoured, l-glutamine powder blends seamlessly with other supplements without affecting taste.
How much glutamine should I take?
Serving sizes vary by product, so always follow the label guidance for the specific glutamine supplement you're using. Most glutamine powders provide around 5g per serving, which is a typical amount used by athletes. Check the product label for the recommended daily intake and adjust based on your individual routine and training volume.
Can I take glutamine with protein powder?
Glutamine and protein powder are commonly taken together and stack well as part of a post-workout routine. Protein contributes to the growth and maintenance of muscle mass1, while glutamine provides additional amino acid support for those training frequently. Mixing l-glutamine powder into a shake made with Impact Whey Protein is a simple way to combine both in a single serving.
Is there a glutamine supplement suitable for all sports?
L Glutamine Powder is described as perfect for all sports and workout goals, making it a versatile choice regardless of training style. Whether you're lifting, running, cycling, or playing team sports, glutamine is a widely used amino acid supplement that fits into a variety of routines. Both the powder and tablet formats suit different training lifestyles.
What other amino acid supplements are available alongside glutamine?
The glutamine range sits within the broader amino acids category, which includes products like NAC Powder — a 100% N-Acetyl L-Cysteine supplement — giving you the option to build out a more complete amino acid stack. The range is designed to complement protein supplements and other performance nutrition products already in your routine.
Who developed the glutamine supplements at Myprotein?
Myprotein's glutamine supplements are developed by the brand's expert in-house nutritionists. Every formula is designed to deliver pure, high-quality ingredients with no unnecessary fillers, ensuring you get exactly what's on the label. The same nutritional expertise sits behind the full amino acids range.
What's the best glutamine supplement for beginners?
L Glutamine Powder is a strong starting point — it's the most popular glutamine supplement and is straightforward to use, simply mixed into water or an existing shake. It suits all training goals, so there's no need to overthink format when you're just getting started. Once you know how you like to take it, tablets are a natural step up if portability matters to you.
Is l-glutamine suitable for vegetarians and vegans?
Suitability varies by product, so always check the individual product page for dietary and allergen information before purchasing. The ingredient listings and dietary suitability details for each glutamine supplement are clearly displayed on the relevant product pages, making it easy to confirm whether a specific format meets your dietary requirements.
1. Protein contributes to the growth and maintenance of muscle mass.