In an Article to TreeHugger, Jeff Nield provides great insight on 9 books that are essential on how food effects our bodies.
Nield relays a collection of interesting anecdotes, the best of which reads as follows:
"A friend of mine was so moved by The Omnivore's Dilemma that he quit his university teaching position and became an organic mixed vegetable farmer, along with his family."
...wow...I'm not sure I'd go that far but a few of these books have certainly had an impact on how eating the right balanced diet can decrease the amount of toxins in the body.
Nutrition plays a huge role in hair growth, the healthier you are the more hair you will grow back due to the elimination of free radicals and toxins in the body.