Scientists reversed biological age in older adults with a 4-week diet change
SkimNews Take
The study's focus on a short-term dietary shift suggests that biological aging markers might be more responsive to immediate lifestyle changes than previously understood, offering potential for rapid, non-pharmacological interventions.
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- University of Sydney researchers published a study in Aging Cell showing that a four‑week low‑fat, high‑carbohydrate diet reduced estimated biological age in adults aged 65‑75.
- Dr. Caitlin Andrews led the trial involving 104 participants randomly assigned to four diet regimens varying in fat content and plant‑vs‑animal protein proportion.
- Participants on the low‑fat, high‑carbohydrate diet showed the greatest decrease in biological age, while those who kept their usual diet showed little or no change.
- The study measured biological age using a 20‑biomarker panel that includes cholesterol, insulin, and C‑reactive protein levels.
- Researchers caution that the findings are preliminary and call for larger, longer‑term trials to determine health disease‑risk benefits.
Why it matters: Older adults gain measurable health improvements; the four‑week low‑fat, high‑carb diet delivers a scalable anti‑aging intervention that lowers disease risk and extends functional lifespan in older populations.
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