The less you eat, the older you live? Research says reducing calories can reduce aging and prolong life

Health 8:43am, 22 July 2025 195

The less you eat, the older you live? A new human trial shows that limiting daily calorie intake, that is, reducing the amount of heat you eat, may reduce the aging rate.

Less heat slower aging

According to a study published in the journal Nature Aging, reducing the intake by 25% can slow down the aging rate by 2% to 3%. Researchers said this means a 10% to 15% reduction in death risk, about the same risk as after smoking quit. This study is part of a survey called CALERIE (Comprehensive Evaluation of Long-term Impacts of Reducing Energy Intake).

One of the authors of the study, Daniel, Center for Aging Research at the University of Colombia Dr. Belsky said calorie restriction can reduce aging biological processes and prolong healthy life in wormwood, wormwood and mice, and the study aims to test whether calorie restriction can also reduce biological aging in humans. During the two-year random control trial, 145 people who randomly allocated calories to reduce their aging rate by 2% to 3% in 2 years compared to 75 people who were eating normally.

Because humans have a long life, it is unrealistic to track them before seeing differences in diseases or survival rates related to aging. Therefore, researchers have detected the phenomenon of aging reduction by measuring a person's "biological age" rather than their actual age. Co-author Dr. Calen Ryan believes that the results of this study are important because they provide evidence of random trials, suggesting that reducing aging in humans is possible.

However, limiting calorie intake may not be suitable for everyone, and researchers will use this clinical trial to confirm whether different precautions, such as intermittent cessation or time-limited eating, can achieve the same effect.

Is the limiting heat extraction effective?

However, not everyone agrees with the results of this research. Dr. Matt Kaeberlein, a Washington University, said his research results are a good suggestive evidence that heat limits can alter aspects of human biological aging, similar to what has been known in experimental animals over the past decade.

Kaeberlein reminds that these measurements report only part of biological aging and may not be a precise overall measurement of biological age or biological aging speed. Beyond that, reducing calories by a quarter may not be a sustainable long-term strategy.

Duane Mellor, PhD, reminded that although the results of the study are interesting, it is more important to be cautious and not encourage the elderly to reduce food intake just to reduce aging. For the elderly, maintaining a healthy body weight, adequate physical activity, eating a variety of protein-containing and healthy diet can reduce the risk of falling.

Long-term scientist Dr. Peter Attia replenishes, limiting calorie recycles is not worthless, especially for those with overcapacity. Attia believes that nutritional surplus is the biggest driving factor in the formation of insulin resistance, leading to type 2 diabetes and other chronic diseases.