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I will continue using it

J Neurol 270:477485 Phokaewvarangkul O et al (2023) Homocysteine, vitamin B metabolites, dopamine-substituting compounds, and symptomatology in Parkinsons disease: clinical and therapeutic considerations

Other causes include strict vegan diets, malabsorption disorders (coeliac disease, Crohn's disease), gastrointestinal surgery, and long-term use of medications such as metformin or proton pump inhibitors

Yes Ive had IGA and TTGIGA done

This includes certificates detailing professional development hours, insurance details, prescriber service, pharmacy registration and PDF versions consultation, medical history, and consent forms

PMID: 25902009