Eating a handful of peanuts every day helps prevent aging
Aug 11, 2025
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A joint research team from the University of Barcelona, Spain, published a study in the international journal 『Antioxidants』 that peanuts are effective in slowing cell aging.
The research team asked 58 adults aged 18 to 33 to consume 25 g of peanut or peanut butter every day for six months.
However, foods rich in phenolic compounds called resveratrol (wine, grapes, dark chocolate (more than 70%), berries) were restricted from being consumed, and other nuts (pistachio, walnuts, almonds, hazelnuts) whose nutritional content is similar to peanuts were also avoided.
During the observation period, the researchers regularly collected saliva samples and measured the length of 'Telomere' in DNA.
Telomeres are DNA fragments located at the ends of chromosomes and are closely related to the lifespan and aging of cells.
It can be seen as a 'biological clock', which narrows little by little whenever cells divide.
The general view of the scientific community is that slowing down the length of telomeres can reduce the risk of aging-related diseases and increase lifespan.
Six months of experiments showed that the rate of telomere reduction in the peanut-fed group was only half that of the peanut butter group.
In response, the research team responded that "Telomere shortening is associated with aging-related diseases such as heart disease, diabetes, cancer, etc." and "Nut consumption can help mitigate these risks."" he said.
However, it is recommended to choose peanuts without salt. This is because sodium intake can cause an increase in blood pressure.
The research team said "As this study was conducted on young and healthy participants, it is necessary to expand the age group and conduct further investigations in the future."
This article was translated by Naver AI translator.
