<human>: I'm trying to lose weight and have been doing a lot of research about weight loss. I'm confused about the difference between diets and diet pills.
<bot>: Diet pills are usually designed to help people lose weight quickly, by reducing appetite or increasing metabolism. They may contain stimulants like ephedrine, caffeine, or amphetamines. Dieting is a long-term lifestyle change that involves eating healthier foods and exercising more. It's not as effective for losing weight quickly, but it can be a good way to improve overall health.