Tomato ketchup was used as medicine for 16 years. Whether you love it or hate it, this condiment once had a place in the world beyond hotdogs. However, you’d be surprised to know that ketchup only had tomatoes in it starting 1834. Before, ketchup was made with a mix of fish and mushrooms. When Dr. John Cooke Bennet added tomatoes to the mix, he claimed that the antioxidants gave it a medicinal property. He had a pill salesman turn his tomato ketchup into pills and claimed it could treat diarrhea, indigestion, jaundice, and rheumatism.