Hazel Stiebeling


Hazel Stiebeling

Hazel Katherine Stiebeling (1896-1989) was an American nutritionist who pioneered the development of USDA programs for nutrition including USDA daily dietary allowances of vitamins and minerals.

Early life

Stiebeling was born in Haskins, Ohio in 1896, on a farm, where her interest in food and nutrition is thought to have developed. In high school she studied domestic science.

Education

After high school, Stiebeling enrolled in a two year program in domestic science at Skidmore College. She is said to have discovered Dr. Henry Sherman's book, "The Chemistry of Food and Nutrition," in the college's library and to have been inspired by it.

After graduating from Skidmore, Stiebeling was employed for three years as a schoolteacher and then she entered the Columbia University Teachers' College where she was an assistant in Foods and Nutrition under Professor Mary Swartz Rose. She graduated with a BS in 1919, and then completed an MA in nutrition in 1924.

Stiebeling became a research fellow under Dr. Henry Sherman at the Graduate School of Columbia University after receiving her MA. Her research was in the basal metabolism of women, the influence of vitamin D on calcium deposition in bone, the nutritional value of protein in human subjects, and others projects. She was awarded a PhD in chemistry in 1928. Her thesis was on a method for studying the content of Vitams A and D in tissues.

In 1930, after graduation from the PhD program, she was hired as Head of the new Section on Food Economics at the USDA Bureau of Home Economics. There, she conducted an extensive investigation of the nutrition value of US diets that has continued until the present day (2005).

Notable scientific contributions

Hazel Stiebeling developed a USDA publication on diet planning in 1933 that is the first known publication to include the term "dietary allowances". It was the first quantitative national dietary standard for the minerals calcium, phosphorus, iron, and vitamins A and C. The values were based on her research in the Sherman laboratory.

In 1939 Stiebeling worked with Esther Phipard to include USDA dietary allowances for thiamin and riboflavin. Their proposal for recognizing some variance between individuals in a population also stimulated an "allowance of a margin of 50% above the average minimum for normal maintenance [...] an estimate intended to cover individual variations of minimal nutritional need among apparently normal people." [cite conference
first = HC
last = Sherman
coauthors = Dickson MA, Smith MC, Daniel EP
title = Mineral needs of man
booktitle = Food and Life, Yearbook of Agriculture 1939
pages = 187-220
date = 1939
location = Washington, D.C.
] This technique has been the standard for developing dietary plans by international organizations like the FAO and the WHO.

References

*Alfred E. Harper. [http://jn.nutrition.org/cgi/content/full/133/11/3698#T1 Contributions of Women Scientists in the U.S. to the Development of Recommended Dietary Allowances] . The American Society for Nutritional Sciences "J. Nutr." 133:3698-3702, November 2003.
*Yost, Edna. (1943.) American Women of Science. Frederick A. Stokes Company, Philadelphia and New York.

ources


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Reference Daily Intake — The Reference Daily Intake or Recommended Daily Intake (RDI) is the daily intake level of a nutrient that is considered to be sufficient to meet the requirements of 97–98% of healthy individuals in every demographic in the United States (where it …   Wikipedia

  • Dietary Reference Intake — The Dietary Reference Intake (DRI) is a system of nutrition recommendations from the Institute of Medicine (IOM) of the U.S. National Academy of Sciences. The DRI system is used by both the United States and Canada and is intended for the general …   Wikipedia

  • Skidmore College — Infobox University name =Skidmore College native name = latin name = motto = Scuto amoris divini (Latin: Under the shield of divine love) established =1903 (as the Young Women s Industrial Club), 1911 (as Skidmore School of the Arts), 1922 (as… …   Wikipedia

  • Mujeres en la ciencia — Mujer enseñando geometría. Ilustración en los inicios de la traducción medieval de los principios de Euclides, (c. 1310). Las mujeres han contribuido a la ciencia desde sus inicios, aunque no hayan sido reconocidas por ello. Historiadores… …   Wikipedia Español

  • Women in science — Women have contributed to science from its earliest days, but as contributors they have generally not been acknowledged. Historians with an interest in gender and science have illuminated the contributions women have made, the barriers they have… …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.