Human study · Supplements / medicine · 16 Sept 2026
Fermented dairy under ~150 g/day tracked lower death risk in 37,366 US adults
Source: News-Medical
What the research found
Study (observational). Zhang and Li report in Scientific Reports (doi 10.1038/s41598-026-71687-9) on 37,366 NHANES adults (1999–2018) followed a median 9.4 years. Self-reported fermented-dairy consumers had 18% lower adjusted all-cause mortality and 20% lower cardiovascular mortality than non-consumers. The dose-response was J-shaped: association with lower risk sat below about 150 g/day; at or above that, no significant link. One- or two-day diet recalls; residual confounding is likely. Educational nutrition notes, not a yogurt prescription for heart disease.
Evidence level: Human study. A study in people, but an association isn't proof of cause.
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