Potatoes, now a common staple in European diets, were once widely mistrusted and even banned in parts of the continent. Originating from the nightshade family—plants historically linked to poison and hallucinogens—the potato was associated with witchcraft and the occult, leading to widespread suspicion.

In France, this distrust reached a legislative peak when the potato was outlawed from 1748 to 1772. French authorities, including medical experts, claimed the tuber caused ailments such as leprosy, and it was generally regarded as suitable only for animal fodder or the lowest classes. The underground growth habit of the potato contributed to the unease, with many seeing it as unnatural due to its emergence from what some termed the "devil’s dirt."

The ban in France was eventually lifted largely through the efforts of Antoine-Augustin Parmentier, a French army pharmacist who had experienced firsthand the nutritional value of potatoes while imprisoned in a Prussian camp, where they were a daily ration. After his release, Parmentier campaigned successfully to change public perception and convince the Paris Faculty of Medicine and the broader public of the potato’s benefits. Today, dishes such as cubed Parmentier potatoes commemorate his advocacy.

Beyond France, superstitions and folk remedies were common. An early 18th-century English botanist, William Salmon, wrote that potatoes could enhance fertility, a view not supported by scientific evidence. Other popular but unfounded beliefs held that carrying a peeled potato in one’s pocket could relieve toothache, drying potatoes into pendants alleviated rheumatism, and potato juice had wart-removal properties.

Despite these early fears and misconceptions, the potato gradually gained acceptance across Europe and has since become a vital food source due to its nutritional value and versatility. The shift in attitude highlights how cultural and scientific understanding can evolve over time, transforming once-feared foods into essential elements of everyday life.