There’s a reason your mother told you to eat your vegetables, not juice them.

But no one seems to be listening these days. According to IBIS World, the market for juices and smoothies is $2 billion annually and expected to grow by hundreds of millions of dollars over the next few years. You can scarcely go a week without hearing about a coworker or celebrity being on a “juice cleanse,” either.

Juicing is not just another fad though: it is a privileged, wasteful form of food consumption that’s worse for you than cooking and bad for the environment; juicing is the triumph of marketing over science.