Nutrition Facts with Dr. Greger Should We Drink Coffee?
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Feb 19, 2026 A lively dive into how coffee may trigger cellular cleanup called autophagy and its ties to longevity. Discussion of coffee’s liver benefits and links to lower mortality. The episode compares roast, brew method, and milk on health compounds and warns about unfiltered coffee raising cholesterol. Practical cautions for certain conditions and caffeine effects on sleep and withdrawal are covered.
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Coffee Stimulates Cellular Cleanup
- Autophagy is a cellular recycling process that declines with age and can extend lifespan when boosted.
- Coffee and even decaf rapidly stimulate autophagy in cells and mice, suggesting a possible anti-aging mechanism.
Benefits Aren't Just From Caffeine
- Decaffeinated coffee produced similar autophagy and longevity effects to regular coffee in studies, implying noncaffeine drivers.
- Chlorogenic acid, a major antioxidant in coffee, enhances autophagy in human cell studies and is a prime candidate.
Population Studies Show Longevity Link
- Observational studies link coffee drinking to lower risks of many diseases and to reduced mortality across populations.
- Three cups daily associated with about 13% lower risk of death and roughly an extra year of life on average.
