How can such a wonderful character building organization sell TRANS FAT laced cookies to raise money? Yes, I know the box lists O grams of trans fat, but the ingredients for some cookies lists a trans fat containing item; partially hydrogenated vegetable oil. If the serving size, in the case for Thin Mints is 4 cookies, contains less than one half gram of trans fat, it can still say 0 gm trans fat on the label. There is some trans fat in those cookies. 
SO, DO NOT EAT MORE THAN a couple of cookies A DAY TO LIMIT YOUR TRANS FAT INTAKE. Trans fat is added to keep the cookies fresher longer. To help block trans fats from being absorbed, eat the cookies with an APPLE. The pectin in apples works by combining with (trans) fat and preventing absorption.
The connection of trans fats to cardiovascular artery disease and cancers such as breast, prostate, and colon is pretty well established. Yes, it is a matter of quantity over time, and one cookie's content of trans fat is no big deal, but it all adds up together with the many other food sources plus restaurant meals may have even greater quantities unless in the States that have banned them. The catch 22 is also that you still have trans fats stored in your bodies from the past when trans fat food quantities were much higher, recall stick margarine. ref