Transfats are also known as partially hydrogenated fats. Transfats are inexpensive. Transfats are not good for health. Eating transfats increase risk of developing heart disease and diabetes. They raise a bad cholesterol level that is LDL and decrease good cholesterol HDL. Transfats when used in cooking gives desirable taste and texture.

Transfats are found in many foods such as fried foods, French fries, pizza, shortenings, cakes, cookies and margarine. Small amounts of Trans fats occur naturally in some meat and dairy products, including beef, lamb and butterfat. When the oil is reused in cooking transfats are formed. The same oil should not be reheated .