Metformin, Berberine, and “Healthy Aging” Claims
“May extend lifespan.” “Comparable to metformin.” “Natural alternative.” These phrases can make metformin and berberine sound like interchangeable routes to better health. They are not. They raise different questions, and both require the same evidence standard: What has actually been tested in people, against what comparison, for how long, and with what outcomes? Metformin is […]