Correct, complete, factual information is essential in my opinion.

An ex-colleague of my husband who heard that Atkins is higher protein than some other diets, did not read the actual Atkins information but decided that he had free reign to eat a great big fatty plate of bacon and eggs every day for breakfast, or steak and eggs for lunch with little or no vegetable matter.

Or an ex-colleague of mine who heard the tail end of a documentary about the 5:2 Fast Diet and thought all she could consume on the fasting days was tea or water. She didn't read the actual 5:2 Fast Diet information and was surprised to learn that the calorie restriction for the fasting days is easy to live with, especially knowing that she could eat normally on the non-fasting days.