Activates AMPK, the body's cellular energy switch, supporting steadier blood sugar, metabolic health, and longevity.
Why Metformin
In a study of over 300,000 people, metformin users had a biological age 0.36 years younger than non-users — measured by PhenoAge, a blood-based marker of how fast the body is aging internally.
Source: Luo et al., "Effects of Putative Metformin Targets on Phenotypic Age and Leukocyte Telomere Length," The Lancet Healthy Longevity (2023)
When researchers modeled metformin's effect on a key target protein (GPD1), the biological age difference expanded to 5.3 years younger.
Source: Luo et al., "Effects of Putative Metformin Targets on Phenotypic Age and Leukocyte Telomere Length," The Lancet Healthy Longevity (2023)
A second target, AMPKγ2, showed a similar effect: the equivalent of 4.9 years younger biological age.
Source: Luo et al., "Effects of Putative Metformin Targets on Phenotypic Age and Leukocyte Telomere Length," The Lancet Healthy Longevity (2023)
Metformin mechanism of action
Metformin works on an energy-sensing pathway in your cells. This can support blood sugar control, cellular aging, and metabolic health.
Step 1
Metformin activates AMPK, a cellular switch that turns on when energy runs low. When it's on, the body shifts into repair mode, using energy more efficiently and reducing excess glucose production.
Step 2
AMPK activation signals the body to dial back mTOR, the pathway that drives cell growth. Keeping mTOR in check is associated with slower cellular aging, and mirrors what the body does during caloric restriction.
Step 3
Metformin can reduce the liver's tendency to release sugar into the bloodstream between meals. The result is steadier blood sugar throughout the day and less strain on insulin production.
About Metformin
Metformin
Can improve insulin sensitivity, which helps reduce chronic metabolic stress.
Acarbose
Can slow carbohydrate digestion, flattening blood sugar spikes that may drive hunger and fat storage.
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