Trans fat is more commonly known as unsaturated fat with trans-isomer fatty acids. Trans fats are never saturated, but may be monounsaturated or polyunsaturated. Trans fats are not essential and do not promote good health, unlike some other dietary fats. Studies have shown that consuming trans fats increases the risk of coronary heart disease by raising level of bad LDL cholesterol, while lowering levels of good HDL cholesterol. Trans fats from partially hydrogenated oils are more harmful than naturally occurring oils. See what oils we use that are natural and healthy.
For more information check out:
http://en.wikipedia.org/wiki/Trans_fat#Nutritional_guidelines
Nutty Kitchen 