A fad diet is a diet that promises quick weight loss through what is usually an unhealthy and unbalanced diet.
diet pills are targeted at people who want to lose weight quickly without exercise.
Some diet pills claim that they make you lose fat, but it’s really water weight you’re losing.
diet pills that are restricted to certain foods may work, but most are boring or unappealing. This can make them difficult to follow on a long-term basis. And some fad diets can actually be harmful to your health.