California is striking a blow against obesity and heart disease: On Friday, Governor Arnold Schwarzenegger signed a bill outlawing the use of trans fats in all restaurants and bakeries. The bill creates the first state-wide ban of trans fats, but follows the path set out by cities like New York City and Philadelphia, which have already evicted the substance from restaurants within city limits.
Trans fats are created by pumping hydrogen into liquid oil at high temperature, a process called partial hydrogenation. The process results in an inexpensive fat that prolongs the shelf life and appearance of packaged foods and that, many fast-food restaurants say, helps make cooked food crisp and flavorful [The New York Times].
The artificial fats have been shown to increase levels of "bad" cholesterol and decrease levels of "good" cholesterol, and are therefore linked to heart disease. The new rule, which will take effect gradually in ...