In other writings, I have listed ten signs that identify irrational recommendations for the use of herbs. He states that the real contribution of herbs to therapy is largely in this energy aspect. Page 17 recommends eyebright as an eyewash. Chapter 12 is devoted to homeopathy.
Anecdotal information is used liberally throughout the book.
The only false tenet missing from Santillo's book is the assertion that God created herbs for the specific purpose of curing disease. Santillo's knowledge of the herbs themselves is superficial. That effect is reserved for cats. Further, a 1988 study indicates that the volatile oil is not the sedative principle in the drug. However, Father Kneipp's name is not mentioned.