Hydrogenated Oils.

... Hydrogenated Oils Can vegetable oils harden your arteries? McDonald's, Burger king and the rest relay heavily on fatty acids to try their wares. This is not entirely bad. Fatty acids are the building blocks of dietary fats, an essential part of the human diet. Dieting fats contain a mixture of saturated and unsaturated fatty acids. Saturated fats carry a full quota of hydrogen atoms in their chemical structure, and unsaturated fats do not. Such products as tallow, lard and butter are saturated fats whereas those like Soybean, canola, olive, cottonseed, corn and other vegetable oils are unsaturated. Saturated fats are Associated with increase in LDL Cholesterol (the bad kind); unsaturated fats can bring that number down. By now, most Americans have learned this dietary rule of thumb: The saturated fats found mostly in meat, dairy products, and tropical oils increase the risk of coronary heart disease and possibly some cancers;

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