This is a Trans-Fat article I wrote for my office Wellness Program. I was trying to convince a bunch of cubical dwellers to forgo the donut, so it is fairly a simple article:
The Hype About Trans Fats: Believe It!
Ok, I’ll admit when I first heard the hub-bub about Trans fats: New York City making them illegal, the FDA requiring labels to list them, lawsuits against food companies that use them, and the campaign to ban them from society (, I thought that this was another attempt by lawyers to make money by claiming that their couch-sitting, fast food eating, non-exercising clients had no idea that eating fat made you, well, fat. However, the more I looked into trans fats, I became convinced that they were much more than innocent little preservatives added to Oreos.
Not all fats are bad. There are "good" fats and "bad" ones, just like there's good and bad blood cholesterol. Saturated fats and trans fat have bad effects on cholesterol levels by raising bad cholesterol. Polyunsaturated fats and monounsaturated fats (such as olive oil, canola oil, soybean oil, and corn oil) have good effects by raising good cholesterol levels and lowering bad cholesterol levels.
Fat is necessary. Fat doesn't just keep us safe and warm (and buoyant). It's an endocrine factory, secreting substances that play a role in everything from regulating weight to constricting blood vessels. Fat produces leptin, which then travels to the hypothalamus, the part of the brain that controls appetite. There it binds to receptors that send messages signaling that the body is full. Fats also transport fat soluble vitamins through the blood, and fats are necessary for cell structure and making hormones.
What are Trans Fats? Trans fats occur in manufactured foods during the process of partial hydrogenation, when hydrogen gas is bubbled through vegetable oil which are then hardened into margarine or shortening to increase shelf life and stabilize the original polyunsatured oil.
Trans fats are usually found in fried foods, fast food, vegetable shortenings, margarines, crackers, cookies, snack foods, and baked goods.
So why is that so Terrible? A trans-fat diet reduces blood vessel function by 30% and lowered HDL ("good")-cholesterol levels by about one fifth compared with plain old saturated-fat diet. So trans fats are much worse than saturated fats. Moreover, trans fats, like saturated fats, raise LDL ("bad")-cholesterol levels, which increase the risk of coronary heart disease.
According to the National Heart, Lung, and Blood Institute of the National Institutes of Health, more than 12.5 million Americans have coronary heart disease, and more than 500,000 die each year. That makes coronary heart disease one of the leading causes of death in the United States.
Besides Being Unhealthy, Look at What Happened to the Monkeys!
In a 6 year study, male monkeys were fed a western-style diet with 35% of the calories coming from fats. One group of monkeys got 8% of their fat from trans fats, the other group received 8% of their fats as monounsaturated fats (like olive oil). They researchers did not believe that the monkeys would get obese because “we did not give them enough calories to get fat.”
Not only did the trans fat group of monkeys have a 7.2% increase in body weight (that’s over 7 pound for every 100 pounds they weighed) as compared to the 1.8% increase in the unsaturated fat group, but ALL that extra weight went to the abdomen! Not only that but some other body fat in these monkey migrated to the abdomen.
Trans fats = pot belly
It is worth mentioning that the apple body-shaped folks (with a waist to hip circumference in a women is .8 or higher, and in a man 1.0 or higher) are more prone to diabetes, hypertension, and heart disease.
The Good News.
The Food and Drug Administration has required that saturated fat and dietary cholesterol be listed on food labels since 1993. Starting Jan.1, 2006, listing of trans fat is required as well. This means that you can avoid trans fats. Also, after this FDA requirement many food companies stop or limited their use of trans fats.
However, if a food item has .5 grams of trans fats or less, they can round that amount down to 0. But you can know if a food contains trans fat by looking at the ingredient list on the food label. If the ingredient list includes the words "shortening," "partially hydrogenated vegetable oil" or "hydrogenated vegetable oil," the food contains trans fat. Because ingredients are listed in descending order of predominance, smaller amounts are present when the ingredient is close to the end of the list.
The American Heart Association recommends that your daily intake of trans fats not exceed 1% of the total calories you consume, but there is no FDA Daily Allowance for trans fats. It is worth noting that trans fats occur naturally in meat, milk and other dairy produce but at low levels and naturally occurring trans fats are limited and balanced by the good properties of these foods. The lower you keep the percent of man-made trans fats, the better.