The hot new issue food-wise is the labeling of trans fats. Even my milk says "0g trans fat." I would hope so!!
The new requirements call for identifying trans fat on the labels. But don't be fooled. The phrase "0g trans fat" doesn't mean zero trans fats (only in America). If a product contains less than 1/2 gram of trans fat PER SERVING, the label can read "0g trans fat." If it has a 1/3 gram of trans fat per serving, and you eat 3 servings, you have consumed 1 gram of trans fat.
Look for partially hydrogenated oils as a huge clue. If it has these, then you are treading into trans fats land.
And realize that FFR French fries don't have nutrition labeling on its container.
Do it in moderation and you'll be fine. Just be careful.