The text shows the expansion of the natural medicine practice and acceptance of principles of a new religiosity, which is based on return to nature and natural lifestyle which draws its value from the theistic worldview. Since the practice is relying on the beliefs, in the theoretical part of the paper, religious values that refer to the Old and New Testaments are present-ed, on which the belief of the promoters of natural medicine is based. In the research part of the paper, the historical development of the institutions that have applied the principles of natural medicine and educated medical missionaries in America are presented. Special attention is directed to the practice and belief of independent groups and individuals who promote this type of beliefs and lifestyles. The development path of acceptance of natural medicine ranges from theology of God to theology of the body and from theology of the body to theology of God, which places a man’s body or a man’s being at the center of concern for the preservation of good health, which expresses respect for the creator. In the practice of natural medicine, monotheism and pantheism meet, but they differ in theoretical explanations of the nature of the divine being.