Try to avoid any fad diets, like 30-day programs or diets that prohibit eating whatsoever, i.e. liquid diets. While these types of programs might produce short-term results, they do absolutely nothing to get at the root causes of why people gain weight in the first place. In other words, they're worthless.
Try to always eat meals while sitting at the table. People that eat meals while they are doing other things, tend to eat much more than those that focus on eating their meal while seated at a table. Try to follow this, even if you are eating alone.
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Test yourself with a 10-pound dumbbell. Hold up a dumbbell and feel how much weight you will be eliminating from your body. You should find this enough motivation to get this out of your body as soon as possible.