Health·3 min read

Scientists reversed biological age in older adults with a 4-week diet change

By InsideWellness Editorial · May 12, 2026

Originally published by ScienceDaily Health & Medicine.

A four-week diet change was enough to make some older adults appear biologically younger in a new University of Sydney study. Participants who reduced fat intake or shifted toward more plant-based protein showed improvements in key health biomarkers tied to aging. The strongest results came from a lower-fat, higher-car

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