US Poet Wat Whitman wasn’t always a successful poet.  During the years before he became successful, he wrote a series on health tips under a pseudonym, and that series (originally published in 1858) was recently rediscovered in a digitized library archive.  You can learn more here:

http://www.bbc.com/news/world-us-canada-36177820

(For what it is worth – Whitman would have probably endorsed the PALEO diet!)