[unix-dude]

Im not thinking about the FDA specifically here. I'm thinking about general wrongful injury (possibly death) lawsuits where someone becomes seriously ill from consuming nothing but their "magic soylentesque shake".

Marketing it as a food replacement would be very difficult because of subtle differences between people's bodies. I think they stick with supplements/protein powder because it reduces the possibility of wrongful death lawsuits (and similar) while still allowing leeway with federal regulations.