Jon Reiner suffers from Chron's disease, which causes inflammation of the lining of the digestive tract. Symptoms include diarrhea, abdominal pain, ulcers and weight loss.
Complications from the disease caused a fistula to form in Jon's small intestine. The treatment was for Jon to not eat or drink anything until the fistula healed. Instead of food, he had a steady intake of TPN (Total Parenteral Nutrition) taken intravenously.
Read his story in the September '09 issue of Esquire.