I'm very interested in this now... I've read that Berberine hcl (a natural compound with no legal restrictions) is similar in action to metformin. However, I cannot find enough information on it as to whether it is anti-aging or if it is selective only in the muscle like metformin. I may have a local connection with some metformin tabs which is exciting. For now I am testing out this Berberine Hcl. I can't say I notice a huge difference. My hopes are higher for metformin.
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