Why you gain weight in winter, even though you eat LESS

 Eating habits

I DON’T EAT MORE, YET I GET FATTER research suggests low levels of vitamin D — the sunshine vitamin — can affect our weight in winter. ‘Your body needs sunlight to synthesise vitamin D, but in  winter there are fewer daylight hours, people go outside less  and when they do they wrap up in gloves and scarves, so their skin has little exposure to light,’ says Dr Stephanie Dillon, senior lecturer in Nutrition at the University of Central Lancashire. Preliminary studies suggest that people with low levels of vitamin D store more fat, though the precise mechanism is still being identified.