In Newly-Discovered Manifesto, Walt Whitman Says You Should Eat Leaves Of Grass

Walt Whitman was a man wise beyond his time in the ways of diet and exercise. Turns out, the American poet was a proponent of what is known today as the Paleo Diet.
American scholars were stunned by the recent publication of โ€œManly Health and Training,โ€ a 47,000-word journalistic screed by Whitman that lay undiscovered for the last 150 years. Whitman wrote the series in the late 1850s, just before the third edition of his now-famous โ€œLeaves of Grassโ€ was published. โ€œThese are the most interesting and mysterious years in Whitmanโ€™s biography, and now we have this major journalistic series right in the middle of it,โ€ said Ed Folsom, the editor of The Walt Whitman Quarterly Review, in the New York Times.
Among other things, the newfound tome discusses โ€œThe great American evil: indigestion.โ€ Whitman writes: โ€œIt is doubtless here that four-fifths of the weaknesses, breakings-down, and premature deaths, of Americans begin.โ€ To combat this great evil, Whitman recommends that people eat โ€œsimple and hearty food, and no condimentsโ€ and avoid the hundreds of โ€œsolid and liquid stimulants, artificial tastes, condimentsโ€ that plague the modern diet. Sections of the piece would be indistinguishable from a Michael Pollan book for modern readers.
The solution to all these perils, according to Whitman? Up early in the morning!โ€ he writes. โ€œHabituate yourself to an early brisk walk in the fresh air.โ€ Eat a diet primarily of meat, and avoid processed food, and spend lots of time being active outdoors. In short, live the way our ancestors didโ€“live the Paleo way.
At a time when little (accurate) scientific research existed on diet and exercise, Whitman showed himself to be a person of great foresightโ€“and hindsightโ€“into the human condition.
http://www.forbes.com/sites/shelbycarpenter/2016/04/29/walt-whitman-manifesto-new-leaves-of-grass/#1f7f34c15dc6