We've made great progress since January 2006, when Congress required that
trans fat content be listed on food labels. Food manufacturers and restaurants
that used the unhealthy fats have scrambled to find alternatives so they can
boast of their "trans-fat-free" foods. Bills to limit or ban trans fats
in restaurants or school cafeterias have been introduced in many states.
Artery-clogging trans fats have been made out to be the bad guy in American
diets -- and there's good reason for that. But the truth is that just because
something is trans-fat-free, that doesn't necessarily mean it's healthy.
Experts agree that using healthy fats, such as canola oil, olive oil, and plant
sterols is better than using the artery-clogging trans or saturated
fats. Yet all fats are loaded with calories -- and so need to be limited
in our diet.
Editor's Note: Food Pyramid Replaced
In June 2011, the USDA replaced the food pyramid with a new plate icon.
To make it even more confusing, labels boasting "zero trans fat"
don't always mean a food is completely trans-fat-free. By law, such foods can
contain small amounts of trans fats per serving. You'll still need to turn over
the package and look at the list of ingredients and the nutrition facts
So just what are trans fats? There are two types -- the naturally
occurring type, found in small amounts in dairy and meat, and the artificial
kind that results when liquid oils are hardened into "partially
hydrogenated" fats. Natural trans fats are not the ones of concern,
especially if you usually choose low-fat dairy and lean meats. The real worry
in the American diet is the artificial trans fats, which are used extensively
in fried foods, baked goods, cookies, icings, crackers, packaged snack foods,
microwave popcorn, and some stick margarines.
These artificial trans fats started getting lots of attention after research
showed that they could increase the risk for heart disease by increasing
"bad" LDL cholesterol and decreasing "good" HDL
The American Heart Association (AHA) recommends limiting trans fat to less
than 2 grams per day (a figure that includes the naturally occurring trans
fats). The 2005 U.S. Dietary Guidelines simply recommend keeping
trans-fats consumption as low as possible.