People just call clean, whatever they like/think is beneficial. Everything they deem harmful is unclean. So it's useless. Regarding Crossfit: There are some v

People just call clean, whatever they like/think is beneficial. Everything they deem harmful is unclean. So it's useless. Regarding Crossfit: There are some very valid reasons I think very badly about CF. It has amazing marketing and can offer a great community (though cult-like). But harms a lot of people long term > see comment above.