Protein is a second macronutrient that the body also needs in high amounts. It functions to repair cells, build muscles and boost the immune system. Sweet corn has a moderate amount of protein for a vegetable. A 1 cup serving contains just over 5 grams. The total recommended daily intake of protein is 46 grams for women and 56 grams for men. If you are looking to boost the protein content, use sweet corn as a side dish with a lean beef steak, chicken breast or pork loin. Sweet corn is also low in fat. A 1 cup serving contains about 2.5 grams of total fat and less than a 0.5 grams of saturated fat. Adding butter to your corn will impact the fat content. A single tablespoon adds over 11 grams of total fat and 7 grams of saturated fat.