Startup Idea : DIY salad bar for bodybuilder/orthorexic

More ppl are aware about food quality,sometimes it's time consuming to prep meals+carry tuperware when out.Hard to find good place to social due to food choice, also ppl with orthorexia/social anxiety..etc,just can't eat out due to dietary restriction. Wouldn't it be good if there's better+fresh quality DIY chain store, no menu required, just present clean carb/raw vege/Realroasted meat or even seafood instead of patties/nuts/dairy/herb&spices..etc, as cheaper easy access buffet.Fresh+full of variety.Not responsible for taste coz of customer's choice,just make sure food source is good+hygienic+daily fresh. It's hard to find good salad bar that's not pre-mixed with dressing, else the meat is processed.If u just want food like household grocery when dining out,not only restaurant is greasy+pricy but u'll be a picky customer. A simple idea, but crucial for better society as more ppl having mental/physical illness.Eat well+have good place to hangout with real ppl is important.Many restaurant over-do food, even cultural differences is a barrier.Of course most ppl eat for pleasure+creativeness,but a worldwide chain with better option isn't bad.