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In the early 19th century, the boundary between food and medicine was far less defined than it is today, with many common household items believed to possess curative properties. While some Americans initially viewed tomatoes with suspicion, even believing them to be poisonous due to their relation to the nightshade family, this perception began to shift. It was an era where people often relied on natural remedies and the word of prominent doctors, making a fertile ground for new health claims.
A key figure in this intriguing chapter was Dr. John Cook Bennett, an Ohio physician and enthusiastic advocate for the tomato. Around 1834, he tirelessly promoted tomatoes as a panacea, claiming they could alleviate a host of ailments including indigestion, jaundice, diarrhea, and even cholera. To make his remedy more accessible, Dr. Bennett not only published recipes for tomato ketchup but also introduced "tomato pills," which were widely marketed as a convenient and effective way to consume the fruit (Review)'s supposed healing essence. These tomato-based remedies were often seen as a gentle, natural alternative to the harsh and sometimes dangerous medical treatments of the day, such as bloodletting or compounds containing mercury.
However, the era of ketchup as a medicinal marvel was relatively short-lived. By the 1850s, as scientific understanding of nutrition and disease advanced, chemists and medical experts began to question the exaggerated health claims associated with tomatoes and their processed forms. While tomatoes were recognized for their nutritional value, the idea that ketchup could cure serious illnesses was debunked. As skepticism grew, ketchup quietly transitioned away from the apothecary's shelf and into its now-familiar role as a beloved culinary condiment, leaving behind a curious footnote in the history of both food and medicine.