I have lots of Golden Age scans but unfortunately none from 1929. However, I have a scan from the German edition ("Das Goldene Zeitalter") that is about Prof. Ehret and his diets. It says that there is no disease except for "the unexcreted matter" and that the reason for all diseases is the white skin. If white men would stop eating bread they would become colored and healthy.
IIf you want the German scan, just post here or send a PM.