Because many factors affect how much or how little food a person eats and how that food is metabolized, or processed, by the body, losing weight is not simple. For example, recent studies suggest a role for genetic makeup in obesity. This area is still controversial, and more studies will be needed before scientists can say with certainty that a person's genes may set limits on how much weight can be lost and maintained.
Yet many people persist in seeking simple cures to this complex health problem. Lured by fad diets or pills that promise a quick and easy path to thinness, they end up disappointed when they regain lost weight.
No Shortcuts
"There are no shortcuts--no magic pills," says Lori Love, M.D., Ph.D., of the Food and Drug Administration's Center for Food Safety and Applied Nutrition. Losing weight sensibly and safely requires a multifaceted approach that includes setting reasonable weight-loss goals, changing eating habits, and getting adequate exercise. Appetite suppressants (diet pills) or other products may help some people over the short term, but they are not a substitute for adopting healthful eating habits over the long term.
The first step in losing weight safely is to determine a realistic weight goal