Body fat is an important factor in overall wellness, and too much can be problematic. In fact, high levels of body fat, or obesity, raises your risk of developing many of the common chronic health conditions linked to premature, preventable death, according to the Centers for Disease Control and Prevention (CDC). But having too little body fat can cause health issues, too, as it’s necessary for the regulation of glucose, cholesterol, energy storage and release, and reproductive hormone metabolism.