Dr. Benjamin Gayelord Hauser (1895–1984), popularly known as Gayelord Hauser, was an American nutritionist and self-help author, who promoted the 'natural way of eating' during the mid-20th century. He promoted foods rich in vitamin B and discouraged consumption of sugar and white flour. Hauser was a best-selling author, popular on the lecture and social circuits, and was nutritional advisor to many celebrities.