Higher Dietary Fiber Intake Is Associated With Lower Mortality in Metabolic Syndrome

The study titled *“Association of dietary fiber intake with all-cause and cardiovascular mortality in U.S. adults with metabolic syndrome”* (PMCID PMC12460082) examined 10,962 U.S. adults diagnosed with metabolic syndrome from the NHANES 1999–2018 dataset, with a median follow-up of about 102 months.

Researchers found that higher dietary fiber intake correlated with lower risks of all-cause and cardiovascular mortality: every additional 5 g of fiber below ~21.7 g/day was linked to a 7% reduction in all-cause mortality (HR = 0.93, 95% CI: 0.91–0.96, p < 0.0001), and those in the highest fiber-intake tertile had a 20% lower all-cause mortality and 39% lower cardiovascular mortality compared with the lowest tertile.

Importantly, the protective effect appeared to plateau around ~22 g/day of fiber. The authors conclude that for adults with metabolic syndrome, reaching moderate fiber intake may confer significant survival benefits, particularly in reducing cardiovascular risk.

https://pmc.ncbi.nlm.nih.gov/articles/PMC12460082/

4 comments