This study on metformin and longevity is promising, but we need longer-term RCTs before recommending it for non-diabetic patients. - https://www.findhealthclinics.com/CH/W%C3%BCrenlos/1456893327703197/L%C3%A4ndli-Apotheke-AG , Plant-based diets can be healthy but require attention to B12, iron...