Well I dont really know about formal studies, but I can tell you that when the garden is in full swing around here and most of our food we consume is out of it, we feel better. Even my die hard chicken wing and pizza loving DH admitted to his friends, he feels better on the home organic garden...
Yes I agree with that. Grandpa usd to always say moderation in all things is good.
As far as growing organically. Well it happened purely by chance for me. I started when I was a kid. My parents had no time for us kids and told us so. Which was great for me, as I was left to my own devices. So...