Fast food is one reason why people get fat, however each country may have already had their own share of culprits. A good example being excessive use of coconut oil in Sri Lanka, or Indian Ghee, or even stuff like over eating red meats as seen in the gulf.In Sri Lanka fast food is very expensive and a luxury to many, yet we get loads of over weight folks there.
Moderation is the key really as one can even get fat overeating even healthy food.That and exercise. However for many this is easier said than done hence a weight loss pill can then become an extra help.