Bok choy of the Daily Value, DV) of vitamin A (30% DV), vitamin C (54% DV) and vitamin K (44% DV), while providing folate, vitamin B6 and calcium in moderate amounts (10–17% DV) (table). Chinese cabbage was ranked #2 for nutrient density out of 41 nutrient-rich plant foods. Bok choy contains glucosinolates. These compounds have been reported to prevent cancer in small doses, but, like many substances, can be toxic to humans in large doses, particularly to people who are already seriously ill. In 2009, an elderly diabetic woman who had been consuming 1 to 1.5 kg of raw bok choy per
Bok Tower Gardens only. To make an appointment, the Bok Tower librarian should be contacted. The Chao Research Center Archives was formed in 2008, after a generous donation made by the Ting Tsung and Wei Fong Chao Foundation. With this donation, space was made available on the second floor of the Singing Tower to accommodate a growing need for delicate archival documents. The Chao Research Center Archives stores the official archives of Bok Tower Gardens along with other significant collections. These significant collections include the Nellie Lee Bok Collection, American Foundation Collection, and Edward Bok Newspaper Scrapbook Collection. The Nellie Lee Bok Collection