Australian Study Finds 3 of 4 Diets Lower Biological Age in Adults 65-75
Updated
Updated · Business Insider · Jun 14
Australian Study Finds 3 of 4 Diets Lower Biological Age in Adults 65-75
3 articles · Updated · Business Insider · Jun 14
Summary
About 100 Australians aged 65 to 75 who ate plant-heavier or lower-fat menus for one month showed measurable biological-age improvements, while the high-fat, meat-heavier Western-style diet showed no change.
Three modified diets shared one of two shifts—less meat protein or more complex carbohydrates with lower saturated fat—and participants also maintained grip strength, suggesting muscle function did not suffer.
All four groups lost roughly 4 pounds on the tightly controlled meal plan, but only diets 2, 3 and 4 improved markers in the Klemera-Doubal biological-age measure built from routine clinical data such as blood pressure and cholesterol.
Researchers said reducing animal protein and saturated fat may curb pro-growth signaling, oxidative stress and inflammation, while outside experts said the findings reinforce broader evidence that modestly replacing meat with beans, nuts and vegetables can support healthier aging.
If older adults cut meat for longevity, how do they avoid the dangerous muscle loss that also shortens life?
Can a one-month diet truly reverse your biological age, or is it just a temporary health boost?
Beyond personal choice, how do social factors like income and race have a greater impact on how fast we age?
Rapid Reduction of Biological Age in Older Adults Through Diet: Insights from a Groundbreaking Australian Study
Overview
A recent Australian study published in Aging Cell reveals that diet can rapidly and significantly reduce biological age in older adults. The research found that participants who ate diets rich in complex carbohydrates and plant-based foods saw a notable drop in their biological age, highlighting a strong link between what we eat and how our bodies age. Biological age, which reflects the combined effects of lifestyle, genetics, and environment on our cells, is a more accurate measure of health than chronological age. These findings suggest that making healthy dietary choices can quickly improve physiological health and slow the aging process.