Would you eat cotton balls to help curb your hunger? Some models do, it turns out, and since the cotton tastes, well, cottony, often things are flavored up with a quick dip in orange juice (of which an ounce adds 14 calories).
This isn't a diet; rather, it is a dangerous way to trick your body into feeling full without actually eating any food. (Of course, if you're not eating food you're going to, inevitably, lose weight.) Cotton balls weren't meant to be in your digestive system, and can cause all sorts of problems when you eat them, beginning with aspiration pneumonia from fibers and liquid that could make their way into your lungs all the way to twisted intestines, abdominal pain and bowel obstruction and necrosis.