A new book by Professor I.P. Neumyvakin is devoted to the healing properties of apple cider vinegar. The history of the medicinal use of this amazing product contains exciting and contradictory pages regarding both the medicinal effect of apple cider vinegar itself and the presentation of methods for its production and use. However, it is indisputable that apple cider vinegar helps to strengthen health and cope with diseases. The author's advice will help to competently use this product in home medical practice. For a wide range of readers.