作者以化學方法測定五十二種國人常用食物中維生素A、胡蘿菔素、噻安、核黃素、及抗壞血酸之含量。
The contents of vitamin A, carotene, thiamine, riboflavin, and ascorbic acid of fifty two kinds of common Chinese foods, including cereals, legumes, vegetables, gourds, fruits, seaweeds, condiments, meats and eggs, were determined chemically.