The study found that people who regularly consumed one or more eggs per day (equivalent to 50 grams) increased their risk of diabetes by 60 per cent and the effect was more pronounced in women than in men.
Past studies from this and other groups have suggested that impaired biosynthesis could be the result of diverse mutations that hinder the foldability of proinsulin.
For the study, published in the journal British Journal of Nutrition, the research team looked at the effect of broken sleep and morning coffee across a range of different metabolic markers.