People who ate a lot of ultraprocessed foods like packaged snacks, sugary drinks, and frozen meals were significantly less likely to reach age 70 without chronic disease and with good mental, physical, and cognitive health.
Evidence from Studies
No evidence studies found yet.
What Would Prove This
Per GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this claim, ordered from strongest to weakest.
Whether higher intake of ultraprocessed foods consistently reduces the probability of healthy aging across diverse populations and study designs.
A systematic review and meta-analysis of at least 15 prospective cohort studies from global populations, all using identical NOVA classification for ultraprocessed foods and identical definitions of healthy aging (survival to 70+ without 11 chronic diseases plus intact cognitive/physical/mental function), with adjustment for identical covariates.
Whether reducing ultraprocessed food intake to below 10% of daily calories increases the rate of healthy aging compared to a control diet high in ultraprocessed foods.
A double-blind, parallel-group RCT enrolling 2,000 adults aged 45–55, randomized to either a diet limiting ultraprocessed foods to <10% of calories (replaced with whole foods) or a control diet with >40% ultraprocessed foods, with primary outcome: incidence of healthy aging by age 70, assessed over 20 years.
Whether ultraprocessed food intake predicts healthy aging outcomes in populations outside health professionals, including lower-income and non-white groups.
A prospective cohort study following 50,000 adults aged 40–60 from diverse socioeconomic and racial backgrounds across the U.S. for 30 years, with ultraprocessed food intake assessed every 4 years via validated FFQs using NOVA classification, and healthy aging defined identically to this study.
Whether individuals who achieved healthy aging had significantly lower past intake of ultraprocessed foods compared to those who developed chronic disease or cognitive decline by age 70.
A case-control study comparing 1,000 individuals who achieved healthy aging by age 70 to 1,000 age-matched controls who developed at least one chronic disease or cognitive impairment, using validated dietary recall data from 20–30 years prior to assess ultraprocessed food intake via NOVA classification.
Whether current ultraprocessed food intake correlates with current markers of healthy aging (e.g., cognitive test scores, physical function) in adults aged 70+.
A cross-sectional survey of 10,000 adults aged 70+ measuring current ultraprocessed food intake via FFQ using NOVA classification and assessing cognitive function (MoCA), physical function (grip strength, gait speed), and chronic disease status, with no longitudinal dietary data.