By the 1700s, many Europeans feared the tomato. According to one theory, the “golden apple” became the “poison apple” because it was thought that aristocrats got sick and died after eating them—but wealthy Europeans used pewter plates, which were high in lead content. Because tomatoes are so high in acidity, when placed on this particular tableware, the fruit would leach lead from the plate, which was said to result in illness from lead poisoning. No one made this connection between plate and poison at the time; the tomato was picked as the culprit.