How do you describe a person who loves everything natural when it comes to health and food?

I am looking for a good adjective to describe a person who prefers natural medicine, who takes natural health products like nutritional supplements, herbal products, organic food whenever possible and stays away from synthetic chemicals or pharmaceutical drugs as much as possible.

Thanks!

A health nut springs immediately to mind. One definition reads: "a person who eats health foods and does exercises to become healthy." But it is an idiomatic expression and one which non-native speakers may be unfamiliar with.

Health-conscious is perhaps more suitable for your needs. But the type of person you are describing sounds to me pretty obsessed. Related but not exactly pertinent, a recently discovered eating disorder called, Orthorexia nervosa, means someone who will not ingest any food considered unhealthy.