Intermittent fasting has become mainstream, but most people do it for weight loss. The more interesting story? Its potential impact on aging and longevity through autophagy, metabolic flexibility, and cellular stress responses.
Fasting triggers several processes linked to healthy aging:
For longevity specifically, consistency matters more than intensity. A sustainable 16:8 protocol practiced for years will beat aggressive fasting that you can't maintain.
Most longevity researchers recommend time-restricted eating (eating within an 8-10 hour window) as a baseline, with occasional longer fasts (24-48 hours) a few times per year for deeper autophagy activation.
Fasting isn't for everyone. Pregnant women, those with eating disorder history, underweight individuals, and people with certain medical conditions should consult a doctor first.