There are many different diet plans out there, but which one is the best? diet plans will explain which diet is the best and which one can go terribly wrong. Weight Watchers is a great diet plan to follow. Weight Watchers offers books and individuals would follow a point plan to keep track of what you have eaten. Weight Watchers does not cause a person to lose weight rapidly, but the weight will come off gradually. Some diets that can go ugly would include stopping eating completely and just drinking water. Not eating can cause rapid weight loss but can cause sickness, fainting and even death. Jenny Craig is rated in the top ten of weight loss programs. Jenny Craig offers meals and snacks that can be purchased at most grocery stores. The Jenny Craig diet is similar to Weight Watchers, but just sells their own line of food. easy diet plans includes bad and good diets that show that even popular diets are not necessarily good diets. The Atkins Diet is a bad diet because it does not provide enough nutrients for the person to remain healthy. Low carb/high protein diets can turn ugly because it dehydrates the body. When diets turn bad and ugly they can cause ketosis, bad breath, nausea and depression. ibs dietshows that any diet can turn deadly if the diet is not researched thoroughly. Fad diets come and go, but the best way to lose weight is not to go on a crash diet. Limiting daily calories according to the weight of the person is the best way to go. Nutritionists and doctors can put each individual on a specific diet to ensure that they are eating properly and enough to keep them healthy.