Glutamine typically has no adverse effects.[1][2][3] Even doses as high as 50–60 grams per day taken for several weeks seem to be well tolerated.[4][5]
What are glutamine’s main drawbacks?
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•Last Updated: May 16, 2025
Glutamine generally has no adverse effects and is well tolerated, even at high doses of 50 to 60 grams per day taken for several weeks.