Trans fatty acids Processing food can result in a subtle alteration of the structure of unsaturated fatty acids, making them trans fatty acids. Trans fatty acids are mostly formed during a process known as 'hydrogenation'. Therefore, meat and diary products may also contain trans fatty acids. Cholesterol Cholesterol is another important dietary fat. It is found mainly in meat, egg yolks, dairy products, offal and shellfish.
Cholesterol is made in the body, mostly in the liver, and has many important functions in the body.
Levels of cholesterol in the blood are determined by a number of factors including genetics, saturated fat intake, body weight and activity level . The effect of dietary cholesterol is thought to be minimal in many people. However, if you have raised blood cholesterol levels, reducing the amount of high-cholesterol foods that you eat may help. Raised blood cholesterol is a significant risk factor for the development of heart disease and circulation problems. In particular, it is the LDL fraction of cholesterol that is harmful.