According to the latest study, having diets with fewer calories may help you delay ageing and age-related disorders such as memory loss.
The findings showed that calorie-reduced diets stop the normal rise and fall in activity levels of close to 900 different genes linked to ageing and memory formation in the brain.
Stephen Ginsberg, senior study investigator and neuro-scientist of New York University (NYU) Langone Medical Center in Manhattan, said, "Our study shows how calorie restriction practically arrests gene expression levels involved in the aging phenotype - how some genes determine the behaviour of mice, people, and other mammals as they get old."
Ginsberg explained that the study does not mean calorie restriction is the "fountain of youth," however, it does "add evidence for the role of diet in delaying the effects of aging and age-related disease."
For the study, researchers found a female mice, which like people are more prone to dementia than males, were fed food pellets that had 30 percent fewer calories than those fed to other mice.
Tissue analyses of the hippocampal region, an area of the brain affected earliest in Alzheimer's disease, were performed on mice in middle and late adulthood to assess any difference in gene expression over time and it revealed that the less calorie consumption helps in delay ageing.