Caloric restriction (CR), also known as calorie intake restriction, is a strategy by which individuals reduce their daily caloric intake without compromising their intake of essential nutrients. This approach has attracted the attention of researchers in the field of ageing and longevity. It is thought that calorie restriction may activate certain genes involved in cellular defence and repair mechanisms, which could slow the ageing process and contribute to a longer and healthier life.
Reducing caloric intake may also help improve insulin sensitivity and manage blood glucose levels. This may help prevent type 2 diabetes and other age-related metabolic disorders.