Glutamine is an amino acid that has been studied extensively for its many health benefits. It is known to boost energy levels, heal the gut, and help with muscle growth—but what about side effects?

Is there such a thing as too much glutamine? How much should you take? What are the counter-indications? We're here to answer all your pressing questions about glutamine.

What are the side effects?

Let’s start with the good news. Most people who take glutamine experience no serious side effects at all.

That being said, if you’re taking too much or not following instructions on how to take it (i.e., with food or on an empty stomach), you may experience some mild symptoms like headaches, nausea, and muscle cramps.

In rare cases, some people have experienced more serious side effects like fever and confusion—so if you experience any of these symptoms after taking glutamine, stop taking it and consult your doctor immediately.

Does it cause weight gain?

When it comes to weight gain, there is no scientific evidence that suggests glutamine will cause weight gain in healthy adults. In fact, some studies have shown that taking glutamine can lead to weight loss in certain individuals—so don’t let concerns about weight gain keep you from trying this supplement!

As far as daily recommended doses go, most health professionals suggest taking between 5-15 grams of glutamine per day for optimal results.

Who should not take glutamine?

Finally, there are some counter indicators when it comes to taking glutamine that everyone should be aware of. People who suffer from liver or kidney disease should avoid taking this supplement as well as pregnant women or those who are breastfeeding.

Additionally, people with neurological disorders or those who are sensitive to monosodium glutamate (MSG) should also avoid taking this supplement since it contains MSG as one of its ingredients.


When taken correctly and in appropriate doses, glutamine can provide numerous health benefits with minimal risk of side effects or adverse reactions.

However, everyone’s body is different so it’s important to be mindful of potential counter-indications before starting any new supplements—including glutamine!

Speak with your doctor if you have any questions about whether this supplement is right for you before beginning a new regimen.

At the end of the day, however, we can confidently say that when used correctly and moderately there really aren't any major side effects associated with using Glutamine!

And, as always, keep on reading...

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