"Let's Get Well" (1965) was her final book, in which she tries to convince the reader that before most diseases develop there were likely nutritional deficiencies that people were not aware of. In the book she discusses nutritional therapy for hundreds of ailments, including heart disease, high cholesterol, ulcers, diabetes, and arthritis, and often contradicts the dietary advice given by many physicians. The book is documented with over 2,000 footnoted references to studies reported in medical journals and books. In her book "Exploring Inner Space" which was published in 1961 under the name of Jane Dunlap she described her experience in taking the hallucinogenic drug LSD.