Studies Find Diet, Exercise Shape Aging, Disease Risk
Studies Find Diet, Exercise Shape Aging, Disease Risk
Anonymous
Several studies suggest that diet may influence cardiovascular health and longevity partly by altering biological aging—the body’s functional condition rather than its chronological age. In a UK Biobank analysis of more than 52,000 adults, poorer diet quality was associated with accelerated biological aging, which appeared to account for a substantial portion of the relationship between diet and cardiovascular disease risk. A separate University of Sydney trial of 104 adults ages 65 to 75 found that four weeks of structured dietary changes shifted biological-age markers, with the largest improvements occurring among participants eating more carbohydrates and less fat, particularly those consuming more plant-based protein. Researchers cautioned that these short-term changes in blood pressure, cholesterol, insulin and inflammation markers may not mean participants literally became younger, and the trial did not establish long-term health effects. An observational study of roughly 7,500 people also linked 10 healthy dietary patterns—including Mediterranean, Nordic, plant-based, DASH and MIND diets—with slower epigenetic aging, although the effects were modest and the findings cannot prove causation.
Key Points
1
The University of Sydney trial provided every meal for four weeks, and participants could eat as much as they wanted without counting calories; they were randomly assigned to diets rather than choosing one.
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In the Sydney trial, the omnivorous high-fat group—whose diet most closely resembled participants’ usual eating patterns—showed no meaningful change in its biological-age biomarker profile.
3
The German Center for Neurodegenerative Diseases study found that more than 70% of the signaling pathways activated across the 10 dietary patterns were shared, while DASH showed particularly strong links to heart-related pathways and MIND to cognitive pathways.
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The observational dietary-pattern study reported that associations with slower biological aging were significantly stronger among smokers, but only 18 participants belonged to the healthiest quartile across all 10 dietary patterns.
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Researchers led by Monique Breteler stressed that the findings do not identify one universally optimal eating pattern, noting that “there is no single correct diet.”
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