Advice for pregnant women remains unchanged following the publication of US research claiming that eating the humble potato increased their risk of gestational diabetes. The research, looking at the diets of more than 15,00 women over 10 years, found that women who ate one serving per week were 20% more likely to develop the condition during pregnancy. Two to four portions raised the risk by 27%, while five or more saw the chance of a diabetes diagnosis rising by 50%. Women who swapped two servings a week of potatoes for other vegetables, such as peas or lentils, were up to 12% less likely to develop the condition, which affects about one in six pregnant women in Britain and can lead to problems at birth. More