A group of people who love yoga or work-out, or subscribe to a healthy lifestyle. What are they called? Is there a single-word for this particular group that describes them in a positive light?
I'd also appreciate any equivalent popular/recognized expressions that haven't yet entered any standard dictionary but have been buzzing around for a few years.
Best Answer
Since you're potentially interested in slang terms, you could consider granola.
Its meaning is something between "hippie" and "health-nut." It derives from the stereotype that these sort of people eat lots of granola.
http://www.urbandictionary.com/define.php?term=granola
My one caveat is that I'm not sure this term refers to living an athletic lifestyle, which seems to be part of what you're seeking.