-co-founder of Sears, Roebuck and Company with his partner Richard Warren Sears
-in 1895, Roebuck asked Sears to buy him out for about $20,000. At Richard Sears' request, Roebuck took charge of a division that handled watches, jewelry, optical goods, and, later, phonographs, magic lanterns and motion picture machines
-was an American medical doctor, nutritionist, inventor, health activist, and businessman.
-major leader in progressive health reform, particularly in the second phase of the Clean living movement.
-He wrote extensively on science and health. His approach to "biologic living" combined scientific knowledge with Adventist beliefs, promoting health reform, temperance and sexual abstinence. Kellogg was an early proponent of the new germ theory of disease, and well ahead of his time in relating intestinal flora and the presence of bacteria in the intestines to health and disease.
-The sanitarium approached treatment in a holistic manner, actively promoting vegetarianism, nutrition, the use of enemas to clear intestinal flora, exercise, sun-bathing, hydrotherapy, and abstention from smoking tobacco, drinking alcoholic beverages and sexual activity.