Trained as a bacteriologist, Harriette Chick began studying nutrient deficiencies during World War I in London. After the War, she was sent to Vienna to study dietary deficiencies in children. There she and her team confirmed the therapeutic value of cod liver oil for rickets, which helped establish the role of diet in that disease. She later headed the division of nutrition at the Lister Institute where she studied the nutritional value of proteins and developed a pig model for pellagra.
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