This isn't an ingredient to approach casually
Interestingly, the gut metabolic module aspartate degradation I, which converts L-aspartate to oxaloacetate by aspartate aminotransferase, was elevated in SAD patients and the authors hypothesized that bacterial aspartate aminotransferase enzyme activity may represent a link between gut microbiome function and the tryptophan-kynurenine pathway, a key physiological system in psychiatric disorders (Butler et al., 2023)
Researchers think that this involves the vagus nerve .[ref] Vagus nerve interaction: A 2026 study showed that the GLP-1 receptor is expressed in the nodose neurons, which are the sensory cells that transmit information from the internal organs to the brainstem.[ref] GLP-1 Medications: Semaglutide, Tirzepatide, and Retatrutide Given GLP-1s powerful effects on appetite and glucose regulation, researchers developed synthetic medications that mimic its action
CagriSema: Fixed-dose combination of cagrilintide (long-acting amylin analog) and semaglutide (GLP-1 agonist) in a single weekly injection
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