John Goodman, from a recent interview in Men's Health magazine:
Man, [Mackie is] just a walking encyclopedia. I don't know why he doesn't have a doctorate because he's up on everything to do with medical advancements, vitamins, nutrition. He's got it all. It's like talking to a computer when you talk to him.
So he does all the work for you and he just kicks your ass?
Hah. He doesn't do it, but he's got a system there in New Orleans in association with East Jefferson Hospital, where we have doctors at our disposal, a nutritionist and trainers. So he hooked me up with a trainer and this time I did a lot of cardio at home. Forty minutes of cardio in the morning and 40 in the afternoon.

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With the Fitness Principle, East Jefferson General Hospital launches an innovative series of programs designed to go beyond fitness, nutrition, disease management and/or lifestyle management. In the past, these various elements have been addressed individually. The Fitness Principle takes these elements along with your work schedule, family life, personality traits, family history, risk factors and disease or injury pre-disposition to formulate programs that treat you as a whole. Read more on The Fitness Principle at EJGH.org »

(L-R) Sasha Bajin, hitting partner, tennis great Serena Williams, and Mackie.
"He's tough," Williams said. "He (Mackie) definitely gives it to you. He has a heart of gold, so if I'm dying or if I'm really sore, he's always making sure I'm OK. But he knows when to push and when not to push, which a lot of times the trainers don't know that."— Serena Williams, World Tennis Champion
Read the full aticle by Nakia Hogan in The Times-Picayune →
Mackie Shilstone is famous for helping world-class athletes achieve the body, drive, stamina, and performance they need to win. Now, with four decades of health-and-fitness expertise, he focuses on providing solutions to the problem of childhood obesity.
—Bob Costas, NBC
on Mackie's book "Lean and Hard."