Off topic but related to healthiness.

I agree, caffeine IS a drug and good to avoid if you can.

But don't stop there. Pay attention to everything you put in your body.

What's in the foods you eat? How was it grown? What was it fertilized with? Was the animal raised naturally and allowed to roam like is an animal's right, to raise it's offspring, to live a real animal's life? How was it fed? Was it fed with feed that includes antibiotics and growth hormones, natural or otherwise, to accelerate it's growth and make it a quicker turnover and therefore more profitable? This applies to cattle, fowl, and even fish. Corporate mega-farming!

I strive for organic and local. Local is important to me because it is harvested riper and is fresher and because there is no need to fly and truck it to my market, adding to the greenhouse effect and using non-replacable fuels. Do I need blueberries year-round from South America? My favorite anti-oxidant, but no I don't; I can eat local and seasonal.

If I can't find local and organic then I choose organic first, then local.

A good book if you are interested in more, and where I am learning about some of this, is Jane Goodall's book (do you remember her? she studied chimpanzee's) titled "Harvest for Hope" A Guide to Mindful Eating. Very good book and makes you think and see ways to make a difference for yourself, your local farmer, and our beloved Earth.