Eating lots of potatoes - especially chips or crisps - is linked to a higher risk for women of developing a type of diabetes that occurs during pregnancy, a study said Wednesday. So-called gestational diabetes can have long-term health consequences for both mother and child, including a higher chance of heart disease and other forms of diabetes. Potatoes - consumed massively across the globe - contain important nutrients, including vitamin C and potassium. But compared to other vegetables and carbohydrates, they also contain extra starch, which is associated with a more rapid increase in blood sugar levels. Generally speaking, diabetes occurs when the body is no longer able to make enough insulin, a hormone that prompts cells in the body to absorb sugar from the blood for energy and storage. Up to now, the possible association between gestational diabetes and eating spuds had not been investigated.