Metformin linked to worse cognition in older people

The researchers suggest vitamin B supplementation via fortified foods, but more research is needed
Reuters Health
Woman in her 70s

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

Northern Irish researchers investigated the relationship between hyperglycemia, metformin and vitamin B status in 4160 community-dwelling, dementia-free older people (mean age 74) participating in the Trinity, Ulster and Department of Agriculture (TUDA) study.