Our Assumption That Eating Fruit Should Be Easy Has Always Been Wrong
In The Book of Difficult Fruit, author Kate Lebo regularly references the Doctrine of Signatures, ancient theory found in multiple cultures that one can glean the medicinal properties of plants by the part of the body they resemble. God made it easy for us, the theory goes, and made flowers that look like eyes to treat eye infections, plants with red extracts for the blood, and womb-shaped fruit for birth. It’s pseudoscience of the highest order, but the point is not whether it works, but what it means that this logic held sway for so long. It’s not that fruit cures liver disease. It’s...