Exercise & FitnessFiber Cuts Cardiovascular Death Risk by 40% and Most People Ignore It
Fiber is one of the most evidence-backed longevity tools available, yet most people chronically under-consume it. A 2026 study in people with elevated cholesterol found that higher fiber intake was linked to a 30% lower risk of all-cause mortality and a 40% lower risk of cardiovascular death. Every additional 10 grams per day was associated with 21% lower all-cause mortality and 23% lower cardiovascular mortality. Layne Norton contextualizes these findings within a massive existing evidence base spanning over 17 million subjects. Fiber supports blood lipid control, blood sugar regulation, satiety, gut health, and body weight — all critical longevity levers. Norton argues that before investing in expensive biohacks, most people should prioritize hitting 25–40+ grams of fiber daily through fruits, vegetables, legumes, and whole grains.
