Boiled potatoes are naturally rich in vitamins and minerals, particularly potassium, phosphorus, Bcomplex vitamins and vitamin C. They are low in calories and fat, and their high fiber content helps you feel full. Contrary to popular belief, potatoes are not inherently fattening. If you add butter or sour cream to potatoes, you increase the numbers of calories and fat grams significantly, so if you are trying to lose weight, season them with herbs or lowcalorie condiments.