Well, saying that people are eating more is not necessarily the best way to put it. The problem is that companies that manufacture food products want to sell a

Well, saying that people are eating more is not necessarily the best way to put it. The problem is that companies that manufacture food products want to sell as much of it as they can. To do that, they make it more appetizing, which generally means increasing the fat and/or sugar content (of course, they also use lower quality ingredients to keep the costs down, which also often increases calorie content). So it's not so much that people are physically eating more, rather that they are consuming foods that have a higher concentration of calories.