Hauser then embarked upon studies of "food science" in order to become an expert and spread a message about "the power of food." He studied in Vienna, Zurich, Dresden, and Copenhagen. He now returned to the USA, changed his name, and set up office in Chicago. He toured the Midwest touting the value of his five "wonder foods": yogurt, brewers yeast, powdered skim milk, wheat germ, and especially blackstrap molasses. Hauser believed in the healthful effects of "whole foods" and urged people to avoid too much fat, excessive sugar, and excessive consumption of meat. He urged people to "enrich" their milk and food with powdered skim milk, blackstrap molasses, and brewer's yeast. He provided recipes for whole wheat muffins, breads, drinks, and yogurt. When enriched white breads were introduced in the 1950s, Hauser denounced them as "devitalized" because of the value of the removed wheat germ.