Changing diet repeatedly or abruptly may harm health: Study
Switching to a rich diet after eating a restricted one can decrease life expectancy, and have negative health effects, according to a study in fruit flies which says changing diet repeatedly or abruptly may be harmful.
The researchers, including those from the University of Sheffield in the UK, provided new insight into why, as well as how, diets could benefit humans in terms of slowing ageing and the onset of age-related disease.
In the study, published in the journal Science Advances, they fed fruit flies (Drosophilia melanogaster) a restricted diet and then returned them to a rich diet.
The scientists found that these flies were more likely to die, and laid less eggs compared to flies that spent their whole life on a rich diet.
The study authors believe that dietary restriction could be making the flies ill-prepared for rich diets.