Ruth Lois Huenemann (February 5, 1910 – August 19, 2005) was an American public health nutritionist.

She attended the University of Wisconsin and graduated in 1938 with a bachelor's degree in nutrition.

[1] In 1953, Huenemann was hired on at the School of Public Health at the University of California, Berkeley.

She was the founder of the public health nutrition program at UC Berkeley.

It is study of growth and development which assists current efforts to understand obesity.

She studied teenaged children to learn their eating habits, activity and body type.