J Nutr. 2024 Jan 12:S0022-3166(24)00027-0. doi: 10.1016/j.tjnut.2024.01.008. Online ahead of print. ABSTRACT BACKGROUND: Dietary fiber is an important health-promoting component of the diet, which is fermented by the gut microbes that produce metabolites beneficial for the host’s health. OBJECTIVE: We studied the associations of habitual long-term fiber intake from infancy…