Dowding became a vegetarian, based on his beliefs as a theosophist and spiritualist. Although he was a vegetarian, he believed that "animals will be killed to satisfy human needs for many a long day to come", and he made several appeals in the House of Lords for the humane killing of animals intended for food. He was also a member of the Fairy Investigation Society. Although he knew that people considered him a crank for his belief in fairies, Dowding believed that fairies "are essential to the growth of plants and the welfare of the vegetable kingdom".