Nobody Knows What Ultra-Processed Food Is

You might know a tomato when you see one, but for the federal government, identifying one is harder. Is a tomato a fruit or a vegetable? In 1893, this question went all the way to the Supreme Court, which decided that, for tax purposes, at least, a tomato was a vegetable. What about milk? For a bureaucrat setting standards, a straightforward explanation such as “liquid from a cow’s udders” won’t quite cut it; according to the FDA, milk is “the lacteal secretion, practically free from colostrum,…