Fat is a word with many different meanings to different people. Specifically, fat refers to a group of compounds that are soluble in organic solvents and insoluble in water. Fat can be found in two different forms: solid fat and liquid fat, which is often referred to as lipids. Fat and lipids can be broken down in the body by enzymes called lipases. Fats are an important part of the human diet although it is important for people to recognize what types and how much fat is healthy. Fats from monounsaturated or polyunsaturated sources (fish, nuts, olive oils) are good for the body. It is trans fats and saturated fats that people should keep consumption of to a minimum. These are the fats, saturated and trans, that will boost cholesterol levels in the body.