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Professor Wendt of Helsingfors is well known for his classic contributions to the knowledge of mineral metabolism. In the present volume he has collaborated with Professor Müller-Lenhartz of Leipzig to discuss various phases of the problem of vitamin C in nutrition. There are five chapters in addition to the foreword. These discuss the nature of vitamin C, the determination of vitamin C and vitamin C requirements, the vitamin C requirements of man and the actual vitamin C intake. The authors point out that the vitamin C intake of people in northern Europe is variable but usually low. During the summer months it increases of course, because of the greater consumption of fresh fruits and vegetables. Various foods are tabulated as sources of vitamin C. It is apparent from the data provided that none of the foods are as rich as leaves in this vitamin. The authors state as their opinion
Das C-Vitamin-Problem in der menschlichen Ernährung. JAMA. 1939;113(3):255. doi:10.1001/jama.1939.02800280067025
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