Explain the digestion of fats in the body.
Fat digestion may be the last thing on your mind when munching on a handful of nuts, but maybe it shouldn't be. Digestion, which can take 40 hours on average, is an important process from which you obtain all of your nutrients. Proper fat digestion requires that the gastrointestinal tract and the accessory organs -- the liver, gallbladder and pancreas -- work together in perfect harmony.
Mouth and Stomach - The process of digestion starts in the mouth, although fat does not get broken down at this point. Mechanical digestion occurs as your teeth grind food and break it apart into smaller pieces. Chemical digestion takes place as lingual lipase, an enzyme in your saliva, begins to emulsify fat and saliva moistens the food to make it easier to swallow. When the food reaches your stomach, the muscles there begin to churn and move to further break it down. Once it leaves the stomach, the food has become a semi-liquid substance referred to as chyme.
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