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Glutamine is the most abundant amino acid in the body, essential for muscle recovery and intestinal health. It supports the immune system, helps muscle protein synthesis and plays a role in blood sugar regulation. Glutamine is particularly important for athletes, as it is consumed in large quantities during intense exercise. It occurs naturally in certain foods and is often taken in supplement form to improve sports performance and recovery. Supplementing with it can be beneficial for maintaining optimal balance, especially during rigorous training.


Glutamine is much more than just an amino acid. It's the fuel for your muscles and a pillar of your intestinal health. Naturally present in your body and in certain foods, it plays a crucial role in supporting your sporting efforts and your general well-being.

A vital amino acid.

Glutamine is the most abundant amino acid in blood and muscles. It plays a key role in many biological processes. As a non-essential amino acid, your body can synthesise it, but its levels can drop considerably during intense physical activity or stress.

Fuel for your muscles.

When you train, your muscles use glutamine as a source of energy. It helps with muscle protein synthesis, promoting muscle growth and repair. That's why glutamine supplementation is often recommended for athletes and people with active lifestyles.

Support for intestinal health and the immune system.

Glutamine is also essential for maintaining the health of your digestive system. It helps strengthen the intestinal barrier, playing a crucial role in preventing harmful substances from entering the bloodstream. It's also vital for the proper functioning of your immune system. At times of stress or after intense training, your body's demand for glutamine increases, and extra intake can help maintain your natural defences.

A role in blood sugar regulation.

Glutamine also has an impact on blood glucose regulation. It can help stabilise sugar levels, which is particularly beneficial for athletes who need to keep their energy levels at an optimal level during training and competitions.

How your body uses Glutamine

Your body redistributes glutamine to the organs that need it, including the muscles, intestines and immune system. During recovery, after injury or training, the demand for glutamine increases, which may require additional intake to meet your body's needs.

Glutamine is a versatile amino acid that plays an essential role in supporting muscle function, gut health, the immune system and glucose regulation. For an athlete like you, understanding and optimising your glutamine intake can be a key factor in improving your performance and overall wellbeing.


The amount of glutamine a person needs per day can vary depending on a number of factors, such as intensity of physical activity, general state of health, and personal fitness and nutrition goals.

For athletes and very active people, like you, recommendations can vary between 5 and 10 grams a day. This dose can be increased during periods of intense recovery or particularly demanding training. However, it's important to note that these recommendations can vary from person to person.It's essential to start with a lower dose to assess your body's tolerance and gradually adjust as required and as recommended by a healthcare professional.

It is always advisable to consult a healthcare professional or nutritionist for personalised recommendations, especially if you have specific medical conditions or are following a particular diet. They will be able to guide you in the best possible way, taking into account your unique profile and personal goals.

As an athlete, you probably already know that listening to your body is essential. If you experience fatigue, slow recovery or other symptoms, this may indicate a need to adjust your glutamine intake.

While the general range is 5-10 grams per day for athletes, the ideal intake depends on each individual and their specific needs.

Can glutamine be taken every day?

Glutamine, a non-essential amino acid that plays a crucial role in many bodily functions, is attracting interest for its multiple benefits, particularly in the areas of muscle recovery, immune system support, and intestinal health. Given these benefits, the question of the frequency and safety of its daily consumption is a legitimate one and deserves particular attention.

Safety of daily consumption.

Glutamine is considered safe for daily consumption in most individuals when taken in recommended doses. Research indicates that glutamine supplementation can be consumed regularly without significant side effects. However, as with any supplement, the approach must be personalised and take into account individual health conditions and specific needs.

Special considerations.

Although glutamine is safe for the majority of people, some conditions may require special consideration. For example, people with kidney or liver disorders should consult a healthcare professional before starting glutamine supplementation. Similarly, pregnant or breastfeeding women should discuss the safety of glutamine with their doctor.

In summary, taking glutamine every day is generally considered safe for most people, provided the recommended doses are adhered to and individual health conditions are taken into account. As always, it is prudent to consult a healthcare professional before incorporating a new supplement into your routine, to ensure that it matches your specific needs and overall health. Glutamine, used wisely, can be an excellent supplement to support your fitness and overall wellbeing.

What foods are rich in glutamine?

Glutamine, a non-essential amino acid, plays a vital role in many biological processes, including supporting muscle recovery, gut health, and immune system function. Although the body can produce glutamine, dietary intake can be crucial, especially for people with increased needs, such as athletes or those recovering from illness. Here's a list of glutamine-rich foods that can help boost your intake naturally:

1. Meat and poultry.

Meats, particularly beef, chicken, and turkey, are excellent sources of glutamine. They provide not only glutamine but also other essential amino acids needed for muscle recovery and overall health.

2. Fish and seafood.

Fish, especially fatty varieties such as salmon and mackerel, contain good amounts of glutamine. Seafood, such as prawns and crabs, are also good sources.

3. Dairy products.

Milk, yoghurt, and cheese are rich in glutamine. They offer the added benefit of containing calcium and other minerals important for bone health and muscle function.

Dairy products.

4. Eggs.

Eggs are a complete source of protein, providing all the essential amino acids, including glutamine. They are also rich in essential vitamins and minerals.

5. Nuts and seeds.

Nuts, such as almonds and cashews, as well as seeds, such as pumpkin and sunflower seeds, contain glutamine. They are also a good source of healthy fats and fibre.

6. Pulses.

Beans, lentils and chickpeas are not only rich in vegetable protein but also in glutamine. They are a great option for vegetarians and vegans.

7. Spinach and parsley.

Green leafy vegetables, particularly spinach and parsley, contain a notable amount of glutamine, especially when eaten raw.

8. Fermented products.

Fermented foods, such as miso and tempeh, can also provide glutamine. Fermentation can increase the availability of glutamine and other amino acids. Incorporating these foods into your diet can help you increase your glutamine intake naturally, supporting your muscle recovery, intestinal health and immune system. However, for those with increased or specific needs, glutamine supplementation may be considered in consultation with a healthcare professional.

How to use glutamine

Glutamine, thanks to its multiple health and sports performance benefits, has become a popular supplement among athletes and active people. To get the most out of glutamine, it's crucial to understand how to use it correctly, in terms of dosage, timing, and cycle length.

Optimal times of consumption.

  • Before training: Taking glutamine before exercise can help reduce muscle fatigue and improve performance, by providing an extra source of energy for the muscles and supporting the immune system.
  • After training: Consuming glutamine immediately after training is crucial for muscle recovery. It helps repair damaged muscle tissue, reduce muscle soreness and speed recovery.
  • Before bed: Taking glutamine before bed can promote night-time muscle recovery and support muscle growth thanks to its effect on protein synthesis and growth hormone.

Cycle duration.

Glutamine can be taken continuously without the need for a specific cycle for most people. However, some people prefer to follow a cyclical pattern, for example, taking glutamine for 6-8 weeks followed by a 2-week break. This method can help maintain the body's sensitivity to its effects. Nevertheless, there is no strong scientific evidence to suggest the need to cycle glutamine.

Additional considerations.

  • Hydration: Glutamine can increase the need for hydration. Be sure to drink enough water throughout the day to support glutamine absorption and overall health.
  • Combining with other supplements: Glutamine can be taken in combination with other supplements, such as BCAAs (branched-chain amino acids), to maximise muscle recovery and performance.

The correct use of glutamine, respecting recommended dosages, optimal times of consumption, and considering cycle length, can play a significant role in muscle recovery, sports performance, and general well-being. As always, it's wise to consult a healthcare professional before adding glutamine or any other supplement to your routine.

Is glutamine effective for muscle recovery?

Glutamine, often mentioned in fitness and bodybuilding circles, is known for its potential to support muscle recovery. Athletes and active people are constantly looking for ways to optimise their recovery after exercise, and glutamine is emerging as a promising option. But how effective is it really?

The role of glutamine in recovery

Glutamine plays a vital role in many metabolic processes and is particularly abundant in muscles. After intense training, glutamine levels in the body can decrease significantly, which can affect muscle recovery and the immune system. Glutamine supplementation is therefore being considered to replenish levels of this amino acid, promoting faster and more effective recovery.

Research-proven effectiveness.

Scientific studies have explored the effect of glutamine supplementation on muscle recovery, with varying results. Some research suggests that glutamine can help reduce muscle soreness and improve recovery after intense exercise, partly due to its anti-inflammatory properties and ability to support the immune system. However, other studies suggest that the effects may be more moderate or specific to certain conditions or types of physical activity.

For whom is it particularly beneficial?

Glutamine appears to be particularly beneficial for individuals under extreme physical stress, such as endurance athletes or those who train very frequently at high intensity. In these contexts, glutamine supplementation may contribute to better recovery by reducing the risk of disease and speeding up muscle repair.

How to incorporate it for muscle recovery

For those looking to incorporate glutamine into their recovery routine, it is recommended to consume between 5 and 10 grams a day, ideally after training and before bedtime to maximise the benefits on muscle recovery. As always, it's essential to listen to your body and adjust dosages according to your individual responses.

Glutamine can therefore be an effective supplement for supporting muscle recovery, especially in athletes subjected to intense and regular training. However, its effectiveness can vary from person to person, and it is important to integrate it into an overall recovery plan that includes adequate nutrition, sufficient hydration, and appropriate rest. As with any supplement, consultation with a healthcare professional before starting is recommended to ensure it aligns with your health and


Natural sources of Glutamine.

You can find glutamine in foods like meat, fish, eggs and some dairy products. But to really reap its benefits, especially if you're an athlete, a glutamine supplement can make all the difference.

QNT Glutamine supplements.

At QNT, we offer you the highest quality glutamine supplements. Easy to incorporate into your daily diet, they allow you to maintain optimal levels of this essential amino acid, supporting you in your quest for ideal form.

Find out more.

Don't hesitate to read our article on glutamine which will give you even more information on this incredible supplement.