Key finding
~10% lower all-cause mortality per 200 g/day increase in combined intake; older cohorts suggest benefit around ~5 servings/day
Evidence & causal status
Moderate–strong
Association
Caveats & limitations
Reliability / bias notes: Dietary measurement error; healthy lifestyle clustering; socioeconomic confounding
This describes a population-level association from published research. It is not a prediction about any one individual, and association is not the same as causation unless stated otherwise above.