After another Thanksgiving, I thought I’d ease everyone back into the daily grind with something unusual for this web site: a culinary op-ed of sorts. Recently, the people in charge of New York City have begun a debate on whether or not to ban trans-fatty acids in restaurants. In order to understand the implications of this, it is necessary to know a little bit about what trans-fatty acids are, and why officials would want to ban them.
Normally, fat comes in four types: saturated, polyunsaturated, monounsaturated, and trans fatty acids. Saturated fat (such as butter, coconut oil, and palm kernel oil) is solid at room temperature, and is generally quite bad for you, in that it has been shown to be correlated with heart disease. Unsaturated fats are liquid at room temperature (olive, canola, soybean, corn, and vegetable oils), and while still bad for you, are less bad than saturated fats (although the fat content in your diet should come from unsaturated fats as much as possible).
The trouble is that all the flavour and goodness in various recipes comes from saturated fat. Some enterprising companies have discovered that if they add Hydrogen to an unsaturated fat like vegetable oil, it takes on properties that make it behave like a saturated fat (in terms of taste, texture, and body). These hydrogenated or partially-hydrogenated oils (which are sold as margarine, vegetable “spreads,” oleos, and shortening) are also called trans-fatty acids (or TFA for short).
Recently, authorities have become concerned because of a link between TFA’s and a number of health problems. TFA's have been shown to raise the level of LDL ("bad") cholesterol, while lowering the level of HDL ("good") cholesterol, which leads to an increased risk for heart attack and stroke. Also, there seems to be a correlation between TFA consumption and obesity levels. The federal government, which is in an excellent position to enforce such a ban nationwide, has been silent on this matter, so some municipalities have started to take matters into their own hands. New York City, as the first major city to consider this, is being watched very carefully. Fast-food restaurant chains such as McDonald's, Burger King, and Wendy's, worried about potential drops in profit margins, have already (supposedly) started investigating alternatives for their fried foods.The proposed ban would only encompass restaurants. People would still be able to purchase margarine, shortening, etc. for home use.
As a professional chef, I am opposed to this sort of regulation for two reasons. First is because it’s badly written legislation that unfairly targets restaurants. Only restaurants would be subject to a ban on ingredients that are otherwise perfectly legal to use. Restaurants generally use a shortening in their deep fryers because it’s cheaper to use, and it doesn’t have to be changed as often as oil (and believe me, changing the oil in a commercial deep-fryer is not trivial). As such, the practical implication of this ban would be to quadruple the cost of anything fried.
The second reason I am opposed to this ban is because I really believe that it is not for a government to regulate what I eat. I am an adult, and I should decide what level of risk I’m comfortable with. I understand that there is a large amount of obesity in our society, but at the end of the day, people are responsible for their own diets, and for their level of activity (or lack thereof). What will happen if this ban comes to pass is that restaurants will most likely revert to using saturated fats such as butter, which is why the American Heart Association does not support the ban as it is currently written.
This sort of regulation first started in the late 1970’s when officials were concerned about Peking duck (which requires that the duck is hung to dry for half a day). It then moved to artisanal sausages and salumerias, and now to TFA’s. As a result, a lot of old-style artisan work is being lost. I admire the New York City government’s intentions, however the practical implications would be to shield people from one danger, while exposing people to another. Where does this end? If they come after Five Guys next, then my friends, the terrorists have truly won.