Unsaturated Fats (good fats) are monounsaturated and polyunsaturated. Polyunsaturated or omega 3 fatty acids are necessary and must come from food sources because the body does not make this on its own. Omega 3 fatty acids have many benefits. They help to lower blood pressure and lower the risk of such health conditions as Eat Stop Eat diabetes, inflammatory bowel disease, stroke, some cancers, and rheumatoid arthritis. Examples of food products high in polyunsaturated omega 3 fatty acids are oily fish such as tuna, mackerel, and salmon. They are also found in some vegetable oils like safflower, sunflower, corn, and soybean oils. Another source of this important fat is found in dark leafy green vegetables. Canola and olive oils are great examples of monounsaturated fats.