Small amounts of transfats can cause a large amount of health risk. Current rules allow food makers to say there is 0.0 grams of transfat per serving if there is less than .5 g transfat preserving. Unfortunately, a diet of 1 or 2 grams transfat daily is associated with all sorts of bad things, and you can easily rack it up by eating a couple servings of foods labeled 0.0 grams transfat. Transfat should be labeled in mg, not g, and reported with at least a precision of 0.1 g.