QUOTE (Glad2BeMe @ Nov 6 2009, 12:40 PM)

Nice job--congratulations. The comments here just go to show that we are all different. A global statement should not be made. Not everyone can do it because maybe there are undiagnosed conditions involved (such as food allergies). Sometimes it is more than willpower.
Sometimes it is, but usually not. Metabolic diseases that completely prevent weight loss are unusual. Some medications have "weight gain" as a side effect, but a lot of them, such as birth control pills, do not actually make you gain weight. They increase your appetite which, if you listen to that false signal, causes you to eat more and gain weight as a consequence of the increased appetite.
I also have life-threatening food allergies. Luckily I am not allergic to very common ingredients in Western food like soy, milk, nuts, wheat, etc. However, my food allergy does not cause me to gain weight. It causes me to break out into hives and my throat to close up...and when that happens, eating is the last thing on my mind, so I don't see how a classic food allergy per se could cause someone to gain weight.
The type of "allergy" that can cause bloating and water retention (and hence weight gain) to me is more appropriately called an "intolerance." I have some food intolerances that have that side effect; corn is one of them. I bloat up and put on about a pound when I consume a decent amount of anything containing mostly corn. But I don't itch, wheeze, break out into hives, or have any other classic allergic symptoms.
Even if someone has a food intolerance, you can modify your diet to avoid that particular ingredient. It is excessively rare for an adult to be allergic to a wide range of food products, so I don't see that as being a big factor in this country's obesity problem.
Getting back to metabolic problems...some of them can make it more difficult to lose weight but it's not impossible. I have known type II diabetics and metabolic syndrome sufferers who were able to lose weight despite their conditions. And a lot of the front-line drugs used to treat type II diabetes do not actually cause weight gain. I have heard a lot of type II diabetics on Metformin complain that it's making them gain weight when actually many patients report the opposite effect. Who knows. Maybe the type II diabetics on Metformin think that because they're taking a drug, they can eat all the white rice they want.
Getting back to my point...for the overwhelming majority of people, it IS about willpower and little to nothing more. Very few people have the types of disorders that make it almost impossible to lose weight, and even if you are on medications that promote weight gain, you can work with your physician to come up with a treatment plan that will prevent or reverse the weight gain in a lot of cases. And people with metabolic problems might need more help with nutrition because certain macronutrients have a different effect on their metabolism and endocrine systems than those macronutrients would have on someone whose body chemistry is within a normal range. But it is doable.
Honestly, most people in this country who are obese are that way because they eat too much. No other reason. Once I stopped eating so much, the weight dropped off. It was pretty easy. This is the case with the
vast majority of people. And I don't intend to sound unsympathetic. I know exactly what obese people are going through because I used to be one of them, and I think I still have some areas of "obese brain" that trigger occasional but intense cravings for fried foods, pizza, etc. I am pretty well practiced at ignoring these cravings but I know how easy it is to give in. Believe me. I know. However, I feel like I would be lying if I blamed my own obesity on anything other than a combination of overeating and a sedentary lifestyle. This is the case for most obese Americans. Sorry.