Your opinion. whats the biggest cause of obesity/fat/overweight?

Too many calories coming in, and not enough calories being expended. People need to eat less and exercise more.

Our society is now based on other people doing things for us...100 years ago, we were not able to just go to the grocery store and spend $200 on Coca Cola, Ho-Hos, and Utz potato chips! Companies also usually make products with a ton of fat because they know people enjoy the way it tastes.
And because of modern technologies such as cars, we've lost the desire to walk. Too many people are also too busy to exercise on top of all of the stuff they have to do already, 100 years ago you pretty much always got exercise no matter what you did. You really weren't obese unless you were nobility.
Basically it's what our entire culture has turned into since the industrial revolution.

Portion sizes, along with lack of activity. With the creation of electrical devices that are supposed to make life better, we work for less, and burn less calories.
But obesity, that is caused by flat out over eating, and an unhealthy diet, and laziness

The food industry adding fattening refined sugars & carbohydrates to foods. Also the way the land & animals are polluted with hormones, pesticides, antibiotics, etc.

food and not enough excersize. you ever wonder why america has the highest obesity rates?

eating too much and not much or no excercise at all. It's really sad that its even happening to little children.

McDonalds!!!!

Ugliness

over eating of the wrong foods.

Pure and simple.....eating too much!!!