The only ways to lose that weight are:
1. Take in fewer calories,
2. Burn more calories, or
3. both.
All of the popular diet books, regardless of the “scientific” explanations they give, recommend menus that give you 1500-1800 calories or less per day, and for most people this means you will be taking in fewer calories. You can lose weight on any low-calorie diet, but ask yourself: Is this a way of eating I can follow for the rest of my life? (If not, you will regain the weight as soon as you go back to your old eating habits.) And, do the foods they tell me to eat supply all the nutrients my body needs? Most people can eliminate whole food groups for a short time without any harm, but eventually you will create deficiencies if you do not eat a wide variety of foods, with lots of fruits, vegetables, whole grains, beans, nuts and other seeds. Don’t believe that you can make up for what’s missing with pills: a lousy diet with supplements is a lousy diet.
The sensible way to lose weight is to eliminate the foods with little or no nutritional value beyond the concentrated calories they contain: refined carbohydrates and added fats. Avoid foods that raise insulin to high levels such as bakery products, pasta, and foods with added sugars. You should eat enough whole grains, beans, and vegetables to keep you full and satisfied. Eat root vegetables and fruits only with other foods.
