1. The Tapeworm Diet
This extreme and illegal diet involves ingesting a live tapeworm to “eat” some of your food before your body digests it. While it might sound like a horror movie gimmick, it can cause serious side effects — including malnutrition, organ damage, and even death. Your body needs nutrients, and sharing them with a parasite is a recipe for severe health problems. Avoid this dangerous and unsanitary practice at all costs.