What is a good book that is an encyclopedia for organic and healthy lifestyles

I have a friend I want to give something like this to as a gift, what is a really good book on this subject of homepathy or organic diet?

He may also like a book on how to get involved in medical or scientific research, since he is really smart and is probably going to go into either physics or biochemistry (he is doing a physics doctorate right now, but may do something with medicine later in his life).

I don’t think homeopathy and scientific research are going to mix very well.

Are you looking for a cookbook or a discussion of healthy eating or both?

Both.

Any of these topics preferably, all in the same book if possible

Homeopathy
the different benefits of and types of organic produce
cookbook for organic foods
The medical research thing isn’t too important.

I’d check out Andrew Weil’s various books. He is an MD, but also an advocate of alternative medicine. I know his site has recipes and some of his books do. He also recommends organic food and has a listing of which foods are particularly likely to be better for you when they are organically grown.