Why Do Celebrities Like Kelly Clarkson, Usher, and Tony Robbins Flock To This Founder/Doctor?

You probably have seen Dr. Gundry. His book "The Plant Paradox" is a best seller. His supplements are widely popular and celebrities like Kelly Clarkson, Usher, and Tony Robbins all credit him with their good health. It seems Dr. Gundry is on top of the health world. But, it wasn't always like that. He struggled like any entrepreneur. And, it was an early book launch failure that helped him develop the character and stamina to become a very successful Doctor/Founder and CEO.