How should a 46 year old woman prepare to lose 20 lbs?

There are many weight lossprograms available; some good, and some can be harmful. In order to choose the best method for you as an individual, one would have to know you as a whole person, your medical history, mental state, environment etc. I would strongly recommend you consult your doctor before engaging in any type of weight loss program. This would be the first step you need to complete before developing a safe and healthy weight loss program.

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Studies have shown that diets don't work. The best weight loss program, is to eat sensible portions of healthy food and take a morning or evening walk.

Avoid processed/packaged foods, but if you must, read the labels and count calories, carbs and fat.

Whenever possible, eat organic. The FDA recently discovered a direct link between weight gain and a herbicide that's used almost everywhere.