Serena Williams

"I've gotten a lot out of his program. As an athlete you exercise your whole life, so you pretty much know what to do, but he definitely has a different outlook and different outtake and makes it fun. I am more fit than I've ever been. And that's so exciting to have someone to push you to those limits. My schedule is pretty hectic, but Mackie has opened up his schedule this year just for me, so if I need him he's always available. I'm a last-minute kind of girl because my schedule is always so crazy. So I just call, and I am like 'Can you come?' and he's always there. He's tough ... he 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,
Tennis legend and 2008 WTA Player of the Year
Times-Picayune interview

Bob Costas

"I have seen first hand the remarkable results Mackie Shilstone has achieved with top athletes. His track record and comprehensive knowledge of exercise physiology and nutrition give him tremendous credibility."

Bob Costas, NBC
on Mackie's book "Lean and Hard"

Jim Lampley

"A guide as vast and varied as its author's career. Mackie Shilstone is equally fluent in hardcore academic research and resonant common sense. In his work with boxers Michael Spinks and Bernard Hopkins, Mackie managed significant improvement in two athletically finished products. Imagine what he can do for the average man or woman."

Jim Lampley
HBO Sports and NBC Sports,
on Mackie's book "Lean and Hard."

Bernard Hopkins

"He gets in your head, he runs with you, he trains with you — he pushes you," Hopkins, 41, said Sunday from Atlantic City, where a day earlier he stunned many by upsetting light-heavyweight champ Antonio Tarver via unanimous decision. "A lot of fighters don't know the benefits of his (regimen) because we are told that the traditional way is the only way — anything else is taboo. Can you imagine how dangerous I would have been had I had Mackie five years ago?"

Light-Heavyweight Champion Bernard Hopkins, after training with Mackie for his stunning victory in his farewell bout against a younger—and larger—Antonio Tarver

Jim Haslett

"When we send players to Mackie, we know he will enhance their performance while prolonging their life."

Jim Haslett,
Former Head Coach
New Orleans Saints

Ozzie Smith

"Mackie's program that he shares with readers for the first time in Maximum Energy for Life significantly prolonged my baseball career and enhanced the quality of my life.

In fact, it helped me reach the Baseball Hall of Fame."

Ozzie Smith,
Retired All-Star Short Stop

Hall of Fame Inductee

Roy Jones, Jr.

"I've got to be honest, when I looked at the tapes, I said, 'How am I gonna beat him [Ruiz]? How am I going to do this? Then I met Mackie Shilstone ... he motivated me to train at another level.'"

Roy Jones Jr.
Former WBA World Heavyweight Champion

Rian Lindell

"Before visiting Mackie, finding the right combination of lifting and running was always difficult for me. After using his kicking program for 3 years now, I find it not only gives me the physical advantage I need to succeed at the NFL level, but mentally gives me peace of mind knowing I've given myself the greatest chance for success.."

Rian Lindell,
Kicker, Buffalo Bills