Final answer:
Fad diets can have poor nutritional consequences as they restrict necessary calories and can result in nutrient deficiencies. Weight loss from fad diets may not be solely from fat mass.
Step-by-step explanation:
Fad diets can have poor nutritional consequences as they often restrict necessary calories that the body needs. They may also lack certain food groups, resulting in nutrient deficiencies. While some fad diets may include necessary minerals and vitamins, it is important to consult a healthcare professional before trying any diet plan. Fad diets typically aim to induce weight loss, but the weight loss may not be solely from fat mass and can include water weight and muscle mass as well.
Learn more about Fad diets and their nutritional consequences