My mums family all had it but I was pre diabetic but have reversed it, I think we inherit our eating habits too and there may be a weakness of carbs, like an allergy, I would get my daughter off pure carbs Ie sugar stuff and up veg and fats,if your daughter is a bit heavier then she is already storing fat, so to many carbs, over the years our ability to tolerate carbs decreases, hence middle age spread, I would limit her on sugar foods, I do my daughter and son. There is so much sugar loaded into all foods download sugar smart app and get children involved in reading the labels and working out the sugar content, it's good practice for when they leave home and have to look after themselves and control their own eating habits.