I love stories like this… from the New Scientist, Diet of Worms Can Cure Bowel Disease. Studies have found that regular doses of pig whipworms can drastically relieve the symptoms of Inflammatory Bowel Disease (IBD) and Chron’s.
Hats off to the brave volunteers for the first studies, who not knowing if this was going to work of not, intentionally submitted their GI tracts to intestinal parasites.