Peter B. I don’t even know where to begin when it comes to Visalus & their product line. As a fulltime athlete (60+ hrs./wk.) in the sport of soccer for countless years, lol I did some pretty decent damage to the ole’ bod! My biggest issue WAS early onset athritis, where it was groing increasingly difficult to function “normally” on a …day-to-day basis. Visalus’ products & the 90 Body ByVi Challenge has rid me of the daily residual stiffness & pain that I was experiencing, not too mention, add about 6 lbs. of muscle, allowing me to run a 1/2 marathon & currently training for the full. Being an athlete that receives a sense of freedom from running….THIS IS A HUGE DEAL!!! Not too mention that I’m 42. So, I’ve got a completely new lease on life as I get older, dare I say I’m feeling younger? Thanks for representing me too what Visalus & The Challenge has done for me!