The answer to the OP's original question is: "It depends on the individual."
I was never much of a junk food person and never a sweet eater. People would look at what I ate and say there was no way I could weigh over 300 pounds eating what I did. Most of these people ate far more than I did and had no weight problem. I once saw a woman on Oprah who was about my same height and build and weighed roughly what I did. The covered a tabletop with what this woman ate in a day. If I had eaten like that, I would've weighed 600 lbs or more. Heck, I gained 12 pounds in a month on WW and told them it was no surprise since it was far more than I ever ate in a day.
I understand now my body does not process carbs like a normal person. For me, it's not just 'how much' but 'what'. I always knew low carb worked best for me as far as losing weight, regulating blood sugar and better lab results but didn't realize that the whole grains and fruit I continued to eat were still the reason I was still not in optimum range on any of these and why I eventually became a diabetic. Then I read Dr. Bernstein's "Diabetes Solution" and it was an eye opener.
As you can see from the variety of responses in this thread, everyone has an opinion of the best way to lose weight and be healthy...but keep in mind that applies only to that person. If I ate the type of diet recommended by many on this thread, I'd still be taking insulin and struggling to lose even a pound a week (if that) on a 1200 calorie diet...gaining on an 1800 calorie diet.
If you believe just eating less will work, try it. Just for your own information, you might want to use something like Fitday.com to record what you're eating so you have something to look back at if it doesn't work.
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