Doris Calloway, née Howes (February 14, 1923 – August 31, 2001) was an American nutritionist noted for her studies of human metabolism, role in public health, and food preservation and safety.

She then moved to the QM Food and Container Institute, where she was a nutritionist from 1951 to 1958, head of the metabolism lab from 1958 to 1959, and chief of the nutrition branch from 1959 to 1961.

Her research there focused on diets at different stages of life, particularly the role of nitrogen and the needs of pregnant, menstruating, and lactating people.

She also researched malnutrition in Kenya, Egypt, and Mexico, and influenced the nutritional aid policies of organizations and governments worldwide.

This research was used to set the Recommended Daily Intake values for nutrients and helped NASA determine dietary needs in space.

She had a son, David, while in graduate school and a daughter, Candace, shortly after earning her Ph.D. Nathaniel became a politician in Chicago and the couple divorced in 1956.

[2][3][4][5] Calloway held several positions in academic societies and with scientific journals and won "all of the most notable awards in nutrition":[2][3][5]