Dr. Michael Greger discusses the results of the "Daniel Diet" eaten as seen in the book of Daniel, Chapter 1, Verses 8-16 of the Bible. In Chapter 1, the prophet Daniel himself takes on a challenge of eating an all natural, plant-based diet. He says, in verses 12-13: "Please test your servants for ten days: Give us nothing but vegetables to eat and water to drink. Then compare our appearance with that of the young men who eat the royal food, and treat your servants in accordance with what you see."

"So he agreed to this and tested them for ten days. At the end of the ten days they looked healthier and better nourished than any of the young men who ate the royal food. So the guard took away their choice food and the wine they were to drink and gave them vegetables instead." (Verses 14-16)

Researchers 2,700 years later decided to put the Daniel Diet to the test. The University of Memphis published two papers revealing the results of a series of experiments conducted on individuals consuming a pure plant-based diet. Participants ate as much as they wanted for 21 days. Dr. Greger notes that, "Within a matter of weeks, participants placed on the vegan diet outlined by the prophet Daniel experienced improvements in blood pressure, cholesterol and insulin levels, insulin resistance, and C-reactive protein levels, a marker of inflammation within the body."