Pecans are as nutritious to eat as they are delicious. These delicate nuts are excellent sources of protein and contain energy producing nutrients – carbohydrates. The fat found in pecans is mostly polyunsaturated and contains no cholesterol. Pecans add fiber to your diet and contain iron, calcium, vitamins A, B, and C, potassium and phosphorous. Pecans also add flavor and a delighted crunchiness to a variety of foods.