According to this October 16, 1928 advertisement in The New Yorker, Pauchet was a real authority about health because he wrote "numerous medical works" including "Surgical Practice" and -- everybody's favourite book -- "Constipation."
This ad for Fleischmann's Yeast (who else?) also contains this choice snippet from the "New York American" newspaper:
PARIS DOCTOR NAMES MENACES TO HEALTH. Dr. Pauchet names the three scourges as alcoholism, social disease and intestinal stagnation. It is for the last that he recommends yeast.Strangely, in all the testimonials that have appeared for Fleischmann's Yeast throughout the years, I've never seen anybody complaining of a social disease. I guess yeast couldn't cure everything.