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
Edward Bok listed on the National Register of Historic Places as a National Historic Landmark. Bok is used as an example in Dale Carnegie's "How to Win Friends and Influence People." Bok died on January 9, 1930 in Lake Wales, Florida within sight of his beloved Singing Tower. Two of his grandsons are Derek Bok and Gordon Bok. In 1895, Bok began publishing in "Ladies Home Journal" plans for building houses which were affordable for the American middle class – from $1,500 to $5,000 – and made full specifications with regional prices available by mail for $5. Later, Bok and the "Journal"