Sorry Chanteyranger, I got you mixed up with another Chantey of the wrong gender!
Isa seems very popular in the online vegan community, I'm aware of the Post Punk Kitchen too where she got really known.

This is your sister's book presumably? It looks well liked by those who have rated it. I've done macrobiotics, the old 'yin and yang' thing, which seemed to do me good. Never dabbled in Ayurvedic food medicine. It is interesting to note though that these kinds of food-based theraputic disciplines really predated our own western interest in using food as a tool for health and not simply a means of either fuel or pleasure. That is to say, Hippocrates did say 'let food be thy medicine', but our allopathic traditions don't seems to have taken too much notice of that edict until more recent times.

http://www.amazon.co.uk/Heavens-Banquet-Vegetarian-Lifelong-Ayurveda/dp/0452282780/ref=sr_1_1?s=books&ie=UTF8&qid=1414399211&sr=