A small daily food choice combined with regular movement may influence how quickly the body ages at a cellular level. New research suggests that adding plain yogurt, improving eating habits, and following a simple exercise routine may help slow biological aging in middle-aged and older men.
The study, published in the journal Aging, examined whether lifestyle changes could affect biological aging markers in men between 50 and 74 years old. Researchers conducted a 12-week clinical trial with 48 overweight men in Japan to measure how diet and physical activity influenced changes inside the body.
How the Study Was Conducted
Researchers divided participants into two groups. One group continued their normal lifestyle, while the other followed a structured wellness routine for three months.
The intervention group consumed 100 grams of plain yogurt every day. Along with the yogurt intake, participants received personalized dietary guidance focused on reducing overeating, limiting unnecessary snacking, and avoiding sugary beverages.
The men were also asked to include regular physical activity in their routine. Their exercise plan involved walking or using a stepper machine for around 30 minutes a day, at least three days each week.
To understand the effects of these changes, scientists collected blood samples before and after the study. They also examined DNA-related chemical changes that can provide information about cellular aging.
Changes Seen in Biological Aging Rate
The researchers measured aging speed using DunedinPACE, a tool that estimates how quickly a person’s body is aging instead of simply counting years of life. The results showed that men who followed the yogurt, diet, and exercise routine experienced a statistically significant slowdown in their biological aging rate compared with the control group.
The average reduction in aging speed was about 2.2%. Researchers noted that this result was similar to changes observed in a previous two-year US study where participants reduced their daily calorie intake by 25%.
The slowdown appeared to happen independently of weight loss. The changes were not directly linked to reduced body mass index or the exact number of exercise sessions completed by participants.
The study also identified improvements in a DNA marker associated with kidney function, suggesting that lifestyle adjustments may influence specific areas related to health.
Why More Research Is Needed
The researchers explained that the results likely came from the combination of probiotics found in yogurt, healthier dietary choices, and physical activity rather than one single factor. Since the study included only 48 participants and lasted for a short period, the findings require additional research.
The participants were also limited to overweight men from one nationality, which means the results may not apply to all groups of people. Longer studies with larger and more diverse populations are needed to determine whether these biological changes can lead to lasting health benefits.
This research adds to growing evidence that small, consistent lifestyle choices may affect the body’s aging process. A daily serving of plain yogurt, balanced eating habits, and regular exercise showed potential benefits for slowing biological aging markers in men. While more studies are needed, the findings highlight how everyday routines can play a role in long-term health.
