A diet high in healthy carbohydrates and low in fat, especially saturated fat, may be the key to healthy aging. Researchers followed 371,000 middle- and older-aged participants over several decades. People with diets low in carbohydrates and high fat and protein, particularly from animal products, had the highest rates of death. People with diets low in fat and high in healthy carbohydrates and plant protein had lower rates of death, including from heart disease and cancer.
Zhao Y, Li Y, Wang W. Low-carbohydrate diets, low-fat diets, and mortality in middle-aged and older people: a prospective cohort study. Journal of Internal Medicine. 2023;0:1-13. doi:10.1111/joim.13639