AMINO ACIDS
L-glutamine
L-glutamine is an amino acid that supports a healthy gut lining and muscle recovery.
Also known as: glutamine
At a glance
- Category
- Amino Acids
- In an apiece formula
- 15,000 mg a day (you can change it)
- Recommended intake
- No recommended intake (not an essential nutrient)
- Upper limit
- No established UL
- Studied for
- Gut & digestion, Muscle & recovery*
- Reference
- NIH ODS: Dietary Supplements for Exercise and Athletic Performance fact sheet
Who should be careful
Our safety rules leave L-glutamine out of a formula, or keep the amount lower, with:
Medicines and supplements
- Lactulose or rifaximin
- Hepatitis B or C medicine
Health conditions
- Liver disease
- Cirrhosis or advanced liver disease
Life stage
- Pregnancy
- Breastfeeding
- Trying to conceive
Always check with your doctor or pharmacist before adding a supplement if you take medication, are pregnant or nursing, or have a health condition. Stay under the upper limit from all sources combined, including multivitamins.
Questions
How much L-glutamine a day?
apiece formulas usually include 15,000 mg a day. The recommended intake for adults is No recommended intake (not an essential nutrient). Upper limit: No established UL.
What is L-glutamine used for?
L-glutamine is an amino acid that supports a healthy gut lining and muscle recovery. In apiece it is part of formulas for Gut & digestion, Muscle & recovery.*
Who should be careful with L-glutamine?
apiece’s safety rules leave it out or limit it with: Lactulose or rifaximin; Hepatitis B or C medicine; Liver disease; Cirrhosis or advanced liver disease; Pregnancy; Breastfeeding; Trying to conceive. Check with your doctor or pharmacist if any apply to you.
Can I get L-glutamine in a personalized supplement?
Yes. apiece builds one daily blend around your goals and, if you have them, your lab results. L-glutamine can be part of it at the amount listed, with every ingredient shown and never more than 10 capsules a day.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This page is general information, not medical advice. Check with your doctor or pharmacist before starting a supplement, especially if you take medication, are pregnant or nursing, or have a health condition. Updated 2026-10-21.