 368-9797. That's 844-368-9797. Performance may vary. You should always consult your financial or tax professional. Whatever happened to Tony Horton, the guy who created the revolutionary P90X? 2017, I was knocked down. A very rare type of shingles went straight into my brain. My body was completely wasting away. I started researching everything related to building my muscle back again. That's when I learned about the potential of HMB plus vitamin D3 and what they can do when it comes to helping build muscle.