Comment by RIMR

0.5g/serving trans fat threshold is even worse when you consider that there is absolutely no regulation for serving sizes. If a company exceeds the limit on trans fat, they don't have to recall the product, they can just decrease the serving size until trans fat falls below 0.5g, then slap "no trans fat" on the front of the container.

Remember that next time you buy cooking oil, and the serving size is 1 teaspoon. It could be as much as 10% trans fat, and they don't have to tell you.