Clause 18 of this important section gives the legislative branch the power to make all laws which shall be necessary and proper, and to carry out the enumerated powers (U.S. Constitution, Article I, Section 8, Clause 18).
There are 81 calories in a 1/2 large Sweet Potato (Without Salt, Baked In Skin, Cooked). Calorie breakdown: 1% fat, 93% carbs, 6% protein.
Double or triple the caloric value of a boiled potato and you can easily end up with unwanted calories. And with mashed potatoes about a half a cup of mashed potatoes contains 108 calories. Comparatively, there are 270 calories in a half-cup of fried potatoes, so beware of the calories from excessive oil and fat. French fries maybe delicious but they are not good for the calorie values.