Metformin is a first-line medication for the treatment of type 2 diabetes, particularly in people who are overweight. It is also used in the treatment of polycystic ovary syndrome. Metformin is generally preferred for gestational diabetes as a first line of treatment over insulin.
It works by decreasing glucose production by the liver, by increasing the insulin sensitivity of body tissues, and by exerting an anorexiant effect, thereby reducing caloric intake. Having said that, it has been approved for trials on its potential for extending human longevity.
Metformins anti-aging effects appear to influence metabolic pathways that aid in turning off bad genes and flipping on longevity genes. This, of course, positively influencing the aging process and may improve the life span in humans for decades or more.
We advise that you do your own research on this medication before you decide to take it.
A great place to begin is by looking up some of the interviews and videos by the world renown Harvard professor David Sinclair, who has done extensive research in longevity, and the positive effects of how metformin can increase our lifespans.