Some supplements, such as berberine, fiber, omega-3s, probiotics, and curcumin, may offer mild metabolic support, but they do not work like prescription GLP-1 drugs and should not be presented as substitutes (Reference)
In fact, vitamin C can potentially enhance the effectiveness of glutathione
Why it was included in the FDA ban Research on DSIP in humans is still lacking, per the FDA
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Villhauer, E
The combined dysregulation of these factors provides a mechanistic explanation for the symptom diversity and subtype heterogeneity observed in GERD, linking neural, endocrine, and immune-inflammatory pathways through the neuroimmune circuits and offering systemic targets for clinical intervention