Scientists reversed biological age in older adults in just 4 weeks

University of Sydney scientists found that people aged 65–75 who reduced fat or animal protein intake showed a decrease in biological age across 20 biomarkers after four weeks. Results published in Aging Cell and are preliminary.

• Study included 104 people aged 65–75 on four diet types
• Three of four groups showed reduced bioage, except high-fat omnivore
• Strongest effect in high-carb group: 53% energy from carbs
• Biological age assessed by 20 markers including cholesterol, insulin, CRP