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Here are some you might experience: Nausea : Some users feel a bit queasy, especially at higher doses

10.1038/s41467-025-59278-0 12 BijkerM

It is, however, a reason to have periodic upper endoscopy examinations with biopsy of the Barretts tissue

When GutBrain Symptoms Dont Have Clear Answers If you are dealing with unresolved fatigue, cognitive symptoms, or mood changes and suspect gut-related factors may be playing a role, a functional medicine assessment can help determine whether Organic Acid Testing is appropriate

and preservatives (e.g., methyl or propyl-p-hydroxybenzoates or sorbic acid)

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