was he a vegetarian?
Yes, he took vegetarian food
Mahatma Gandhi
vegetarian food 
when did dandi march started and when it ended From 12 March 1930 to 6 April 1930 who led it? Mohandas Karamchand Gandhi why was it done? It was a direct action campaign of tax resistance and nonviolent protest against the British salt monopoly. where was the one who led it born? Gujarat, western India where did he study? University College, London
wiki:25694864
Mahatma Gandhi [SEP] Vegetarianism and committee work
Gandhi's time in London was influenced by the vow he had made to his mother. He tried to adopt "English" customs, including taking dancing lessons. However, he could not appreciate the bland vegetarian food offered by his landlady and was frequently hungry until he found one of London's few vegetarian restaurants. Influenced by Henry Salt's writing, he joined the London Vegetarian Society and was elected to its executive committee under the aegis of its president and benefactor Arnold Hills. An achievement while on the committee was the establishment of a Bayswater chapter. Some of the vegetarians he met were members of the Theosophical Society, which had been founded in 1875 to further universal brotherhood, and which was devoted to the study of Buddhist and Hindu literature.