Some considerations for people taking L-glutamine include:
Since the manufacturing of supplements (such L-glutamine) is not closely regulated, it is important to choose a trustworthy manufacturer for L-glutamine supplements. It is a good idea to look for the "USP" symbol, since this means that the supplement has been tested and contains the right ingredients in the right amounts.
If you have any chronic health problems or take any prescription medications, it is probably a good idea to check with your healthcare provider before taking L-glutamine.
If you are unsure about anything related to your dosage or L-glutamine dosing in general, please talk with your healthcare provider.