Good Health For You: A Booklet Concerning the Value of Royal Yeast Cakes in Restoring and Maintaining Good Health advertises the healing power of the yeast cakes produced by the E.W. Gillett Co. Ltd. The booklet highlights a culinary trend from the 1920s-1930s of using yeast to cure a variety of illnesses and maintain bodily health. After the First World War and a brief economic recession, Canadians began to experience a period of growth and prosperity. Nutrition and the benefits of consuming a variety of foods became more popular as research and knowledge about the body was expanding. In the 1920s, this knowledge was still fairly rudimentary. Building on research conducted during the First World War, food scientists began recommending alternative food sources, such as nuts for protein and yeast as a nutritional supplement. With the discovery of vitamins and their potential health benefits in the early part of the 20th century, food manufacturers and promoters found ways to include references to these magic “pills” in their products. 

Yeast products, such as Royal Yeast Cakes, were described as rich in nutrients, including vitamins, potassium, zinc, and protein. Research has shown that the nutritional content of certain yeast products can be beneficial for fighting colds, diabetes, and some heart conditions. Good Health For You: A Booklet Concerning the Value of Royal Yeast Cakes in Restoring and Maintaining Good Health reminds its readers that “yeast is rich in vitamins” and extensive research by well-known scientists concluded that “yeast is the richest known source of the water-soluble vitamin B." Other companies involved in the manufacture of yeast resorted to similar tactics in promoting a “new want for yeast.” The Fleischmann Company, for instance, recruited a professor who published an article in the Journal of the American Medical Association, supporting the proven effects of using yeast for curing boils, acne, and various skin and stomach issues. To convince readers of the health benefits of Royal Yeast Cakes, the book's creators offer a few examples of medical miracles, including a woman, aged thirty-two, who recovered from long-time suffering of kidney trouble after using Royal Yeast Cakes. A letter from Mrs. M.B. Somerville of St. Catharines, Ontario was also cited by the book's creators to prove the effectiveness of Royal Yeast Cakes for treating her puzzling medical conditions. Royal Yeast Cakes were also described as having the ability to "beautify" the skin, which suggests the importance placed on physical beauty in the 1920s. The booklet also outlines other benefits of using Royal Yeast Cakes, such as helping with digestion, relieving constipation, supporting the nervous system, and curing insomnia. The creators then claimed that consumption of Royal Yeast Cakes could help maintain good health and worked “wonders in a very larger number of cases” even though it was recognized that yeast “may not be a panacea for all ills.”