Incorporating daily probiotic yogurt into the diet, alongside mindful eating habits and regular exercise, may contribute to slowing the body's biological aging process, according to new research published in the journal Aging. The study observed a 2.2% reduction in the rate of aging among overweight men over a 12-week period.
The clinical trial involved 48 overweight men aged 50 to 74 in Japan. For 12 weeks, half of the participants adhered to a structured wellness routine, while the other half maintained their usual lifestyle. The intervention group was instructed to consume 100 grams of plain yogurt daily. They also received individualized dietary counseling focused on curbing overeating, avoiding excessive snacking, and eliminating sugary drinks. Additionally, this group engaged in walking or used a stepper machine for approximately 30 minutes, at least three days per week.
Scientists measured the impact of these changes by analyzing blood samples and DNA for chemical alterations that indicate cellular age, using a tool called DunedinPACE. This measurement assesses the precise rate at which an individual's body is aging, distinct from chronological age.
The participants who followed the regimen of probiotic yogurt, dietary changes, and exercise demonstrated a statistically significant decrease in their biological aging pace compared to the control group. This reduction was observed independently of weight loss, meaning it was not directly correlated with changes in body mass index or the number of exercise sessions completed. The study also noted an improvement in a specific DNA marker associated with kidney function.
Researchers concluded that the observed anti-aging benefits likely result from the combined effects of probiotics, diet, and exercise, rather than any single component. They acknowledged limitations, including the small sample size, short duration, and the study's focus on overweight men of a single nationality. Further research is necessary to determine if these short-term biological shifts can lead to long-term health benefits.