Diet change tied to ‘younger’ biological age in older adults after 4 weeks
Key Points:
- Researchers from the University of Sydney found that changing diet later in life can slow biological aging within just one month, based on a study involving 104 participants aged 65-75.
- Participants were assigned to one of four diets varying in protein sources (animal vs. plant) and macronutrient emphasis (high fat vs. high carbohydrate), all with 14% energy from protein.
- Biological age, measured through 20 health biomarkers such as cholesterol and insulin, decreased in three of the four diet groups, with no significant change observed in the high-fat omnivorous group.
- The greatest improvements were seen in diets rich in complex carbohydrates and plant-based proteins, suggesting potential benefits of these dietary patterns for aging.
- Researchers caution that these findings are preliminary and reflect short-term effects, emphasizing that it is too early to confirm if such dietary changes will extend lifespan.