A C-SPAN crew records Ruth MacDonald\'s class lecture, which will air on American History TV. MacDonald explained how products such as corn flakes and graham crackers were developed to improve health. Photo by Christopher Gannon
A C-SPAN crew records Ruth MacDonald\'s class lecture, which will air on American History TV. MacDonald explained how products such as corn flakes and graham crackers were developed to improve health. Photo by Christopher Gannon

American History TV to feature Iowa State lecture on the evolution of nutrition

Nutritional deficiency diseases such as goiter and rickets were common conditions in America 100 years ago, but now you rarely hear of such cases.

Advances in understanding the composition of food and the role of nutrients in health and disease led to iodized salt and vitamin D fortification that have essentially eliminated these conditions, explained Ruth MacDonald, professor and chair of food science and human nutrition, during a class lecture that will be featured this weekend on C-SPAN’s “Lectures in American History” program.

Read the complete story provided by the ISU News Service.

  • Quick Look

    Watch Ruth MacDonald’s class lecture on C-SPAN 3 at 7 p.m. and 11 p.m. on Saturday, July 1.

    Once the lecture debuts, you can also view it here: https://www.c-span.org/video/?423699-2/history-diet-nutrition-guidelines

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