This is true for the most part, they don't like natural methods, they say they are not approved ,by the FDA. I've seen alternative medicine work, it has been suppressed but some cancer centers have started using alternative methods, stem cell is very complicated, you don't hear much about ti today, I know a transplant surgeon in Texas, who works in that is working with them, he helped with on my transplant in 98 and 2000. I do agree somewhat that they suppress, the natural, but it is less than previous years.

@bosco17, I can understand your wish to be free of medication. I agree with @ca426 that major health institutions and more and more clinicians and researchers are taking note of complementary and alternative medicines, more commonly referred to as integrative medicine. In fact, Mayo Clinic has a whole department dedicated to Integrative Medicine and Health https://www.mayoclinic.org/departments-centers/integrative-medicine-health/sections/overview/ovc-20464567

Stem cell treatments still hold much hope. With hope comes a lot of hype too. Research takes time to not only prove that something works but also to test the efficacy and safety. Stem cell research is a new frontier. Here is the latest information about liver regeneration from Mayo Clinic https://www.mayo.edu/research/centers-programs/center-regenerative-medicine/focus-areas/liver-regeneration