Mark Sisson
Born: July 20, 1953 (age 71)
Bio: Mark Sisson is an American fitness author and blogger, and a former distance runner, triathlete and Ironman competitor. Sisson finished 4th in the February 1982 Ironman World Championship.
Known for:
- The Primal Connection (2013)
- Primal Blueprint Quick and Easy Meals (2011)