Cravings are defined as intense, urgent or abnormal desires or longings. Not only are they very common, but they’re also arguably one of the most intense feelings you can experience when it comes to food. Some believe that cravings are caused by nutrient deficiencies and view them as the body’s way to correct them. Yet others insist that, unlike hunger, cravings are largely about what your brain wants, rather than what your body actually needs.