When Mahatma Gandhi was in England he used to make his own arrangements for food and drink. Therefore he gained quite an experience as to what one should eat or not to keep his health and prevent illness. Gandhi ji believed in the old saying 'Prevention is better than cure'.To benefit the people in general he wrote the book 'Key to Health' in his native language, Gujarati, which was later translated in Hindi and English.On the 150th Birth Anniversary of Mahatma Gandhi we have brought out this book, in view that the readers may benefit from the experiences of Mahatma Gandhi and keep themselves fit and healthy.