Vaccination, use of aluminum, etc. were "open debates." The top brass couldn't travel internationally without vaccinations and Macmillan openly said he had his. Blood issues were "doctrinal." The wild health speculations in Golden Age were not, though they influenced many. When I was a hell of a lot younger than I am now (1940s, 1950s) many were still influenced by the anti-aluminum and anti-inoculation articles. But those articles were not meant to be "doctrinal."
Your research will improve if you chase down the biographies of the Golden Age writers. It makes for an interesting study. Also, if you were my student, I'd suggest that you see who else was promoting similar views. You will find a mixture of "real science" as it was in the 1920s and 30s, and quack medicine.