Healthy King Keto Chocolate chip cookies, bacon, milk chocolate bars, potato chips, and peanuts are much higher in caloric density. Even though pretzels are essentially fat free, they are high in energy density because they lack water and fiber.resh corn (e.g. steamed corn or corn on the cob) has a caloric density of 0.92. However, a corn muffin has a caloric density of 4.14 and corn bread has a caloric density of 4.27. So, choose a big bowl of steamed corn if you're hungry.