Final answer:
Fad diets are not a reliable way to lose weight and often lead to water loss instead of fat loss. People usually regain the weight they lose, and sometimes even gain more weight, when they stop following these diets.
Step-by-step explanation:
Fad diets are typically not a reliable and sustainable way to lose weight. While they may offer quick results, it is often due to water loss rather than a reduction in body fat. Additionally, most people tend to gain back the weight they lose, and in some cases, even more weight, once they stop following a fad diet.
Learn more about Fad diets and their effectiveness for weight loss