Obesity is a major problem in the United States, according to a study I saw, between 2005 and 2007 the number of obese people in the USA increased by 2%. The number of obese people is around 1 and 4. This increase of fat people is not limited to the USA, China for examples number of fat people is rising fast as well, more than a quarter of the adult population is overweight or obese. The only country whose getting fat as fast as China and the USA is Mexico.
The most sad thing about the increase of obese people, in my opinion, is that all three countries I listed also have a lot of people starving to death from lack of food, social reasons, or economic reasons. One book that chronicles starving in the USA is Still Hungry in America. While it is an older book (from the 60's) there are still people living in the USA who do not have food. Some children's only guaranteed meal of the day is their school lunches. Food is important but there are people in the USA who don't even have clean or running water. Many people of the Navajo nation do not have clean or running water, they have to drive miles every day to get water, sometimes the trip is a waste of time, no water is left by the time they get there. The United States is a first world country but some parts/places are as bad as third world countries. There are people who work and/or are on food stamps and still are hungry.
People also waste food, a large amount of edible food is just thrown away. I am sad whenever I see people throwing away food at restaurants or see half eaten food in trash cans. I was always told to eat all my food and not leave any on the plate. People need to learn how to plan the amount of food to buy, order and eat better than they do. According to this article: US wastes half of it's food and according to this article 1/3 of the food purchased in Great Britain is thrown away: One Country’s Table Scraps, Another Country’s Meal and according to the Peta blog 5,500 chickens are tossed in the trash at KFC's every day in the UK.