John Heart on High Carb vs High Protein, SuperSlow, And The Importance Of Time Under Load
John Heart (@MrAHeart and Insta: @mraheart) is a renowned bodybuilder, trainer and teacher within the fitness industry. He has won the title of Mr. America and Natural Mr. Universe. His primary platforms used for training/teaching include in-gym, YouTube, and all forms of social media including Facebook. John currently trains in-gym clients in Los Angeles, California and manages his online …