Most lipids that you consume in your diet are fats. Some digestion occurs in your mouth and the stomach, but most takes place in the small intestine. Bile is produced by your liver, stored and released in your gall bladder and emulsifies fat globules into smaller droplets.utrients are important substances that allow your body to perform required daily activities. Carbohydrates, fats and proteins are the major nutrients your body needs for growth, repair, movement and maintaining homeostasis.