Association of dietary fiber intake with all-cause and cardiovascular mortality in U.S. adults with metabolic syndrome: NHANES 1999-2018.

ABSTRACT:

Background

Low dietary fiber intake is common in the US, despite its health benefits. Individuals with metabolic syndrome (MetS), at high cardiovascular risk, may benefit significantly from higher fiber, but its link to mortality in this group is unclear.

Methods

We analyzed prospective data from 10,962 U.S. adults with MetS (NHANES 1999-2018, mean age 58.1). Baseline fiber intake (g/day) was assessed via 24-h recalls. MetS was defined by ATP III criteria. Mortality (all-cause, CVD-specific) was tracked via the National Death Index (median follow-up 102 months). Cox models estimated hazard ratios (HRs) for mortality associated with fiber intake, adjusted for demographics, socioeconomic status, lifestyle, and comorbidities.

Results

Over follow-up, 2,617 deaths occurred

SUBMITTER: Guo Y 

PROVIDER: S-EPMC12460082 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature