The only "something" in the food which is making people obese are the calories. Exercise portion control, self control and discipline; move more than before, eat less. Obesity problem solved.

I am in Canada and every time I go to the States I am amazed at the size of the portions they give you in restaurants! I think that you can easily...EASILY send back half of the portion and still be full!

Something is definitely in the food.

I agree with Scarletangel. We need to watch portion sizes and excercise. Eat less move more. When I do this I can lose wt, unless I fall off the wagon too much lol.
Small changes can make a big difference. When eating out, save half for another meal. Left overs are very tasty.
No one needs to diet extreme. Do not skip meals. Either 3 full size meals, or 5 small throughout the day. Whatever works for you. It is a great lifetime journey and we can learn self disciplne along the way.

Self control...people are not obese because of the food its the food choices..and portions.

If you follow the food pyramid and portions and eat well and make good choices you will be fine. If you eat fast food daily and buy tons of processed food all the time..it is just harder and hard. Plus your genes can play a factor as well. Its harder for some than others.

Restaurants in the USA have huge portions..unless you are at a fine dining restaurant. We have buffets of food...