Metformin linked to worse cognition

Poorer cognitive function could be down to vitamin B deficiency, study finds
Reuters Health
diabetes drugs

Metformin is associated with worse cognitive function in older adults, which could be explained by B-vitamin deficiency, research suggests.

An association between long-term metformin treatment and vitamin B12 malabsorption was first reported more than 40 years ago, writes Dr Kirsty Porter, of Ulster University in Coleraine, Northern Ireland, and colleagues.