As a person who lost ~30 lbs while eating mcdonalds, taco bell, and other garbage food - Those people need to GTFO. Calories in, calories out. Lazy bachelor me sucked at cooking, didn't want to learn, but still wanted to lose some weight. So I did. Every food place has their menu with the calories of the items listed on their website. SUPER easy to just read that freaking menu, line it up with how many calories you can eat, and lose weight.  Don't worry, I eat real food now. ;)