Support local joints!
Yes, Vegas has Whole Foods and Trader Joes and Sprouts Markets, but why go to them when you have fantastic farmer's markets with local and CA grown organic and sustainable produce (every day of the week except mondays right now) ... AND you have Rainbow's End for everything else. Supplements, bulk goods and mores...
They also have a nice in-house restaurant that makes fresh juices! I am a regular for their non-sweet green juice with a splash of lemon.
They also have a large eating area where they often have classes and meetups. Their meetup is here: http://www.meetup.com/wholeway