They're being marketed in a different way
Other Ingredients: Hypromellose (Vegetable Capsule), Organic Rice Hulls, Silica
Nobody has real demographic data on grey-market buyers, so what follows is reporting and observation, not a census
Epidemiological evidence has increasingly suggested that metformin, a commonly prescribed medication for type 2 diabetes, protects against the development of neurodegenerative diseases [23]
Cell 185(14):2478-2494.e28 [DOI] [PMC free article] [PubMed] [Google Scholar] Zheng Z, Zong Y, Ma Y, Tian Y (2024) Glucagon-like peptide-1 receptor: mechanisms and advances in therapy
Further, it is anticipated that 635 million people have impaired glucose tolerance, while 488 million have impaired fasting glucose