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.
One cup of raw yams contains about 158 calories, whereas 1 cup of raw sweet potatoes contains about 114 calories. Therefore, yams contain about 44 more calories than sweet potatoes for an equal portion. Picking and Storing Sweet Potatoes. Choose potatoes that are heavy and firm with clean skin and few eyes.