 3. Pancakes with butter and syrup. This classic combo might be drenched in nostalgia, but it's also a sugar overload. 3 pancakes with the usual toppings can pack a whopping 880 calories, enough to send your blood sugar on a roller coaster ride. 4. Biscuits and gravy. Comfort food at its finest, but this duo hides a double whammy of white flour and saturated fat. One serving can easily top 500 calories and send your sodium levels skyrocketing. Now here's the final one. 5. Box cereals. Remember those childhood mornings with cartoon characters promising energy? Turns out, many box cereals have higher glycemic index numbers than table sugar. Cheerios at 74 and cornflakes at 80 can spike your blood sugar faster than you can say bowlful. This isn't just scaremongering. Studies by the American Heart Association and the Centers for Disease Control and Prevention have linked excessive consumption of these foods to increased risk of heart disease, diabetes, and obesity.