Vegetarianism which he started following while in London as a student became another unalterable principle of his life. He also became an ardent follower of the Naturopathy, a way for the maintenance of health and medical treatment.
His naturopathic practices involved strict restrictions to his food, making intelligent use of water and soil for medicinal purposes. He thought calling a doctor for even very minor ailments is foolishness. Such people become slaves to their bodies instead of bringing their bodies to their control.
Another principle he developed was punctuality. He was very particular in keeping his time punctually, and never did he procrastinate doing things ignoring the pre-appointed schedule. He wrote a series of articles on these principles and practices in the journal ‘Indian opinion’, and a collection of these articles was brought out as a book later, titled ‘A Guide to Health’.