@dna41 I was going to mention Margie Bissinger as a source of info, including podcast interviews w many experts, including Dr. McCormick, and Dr. Millman, who practices in CA.
I also highly recommend the Onero program, researched and developed at a university in Australia. They’ve figured out a way for people to build bone safely lifting weights, and train and license practitioners all over N. America. Recent data has shown better results than with Fosamax, and minus the side effects, of course.