2 6. As a result, whereas the pre-war diets of the three countries were very similar in commodity composition and nutritive value, there were significant differences in 1943. Such differences as had existed between the United States and Canadian diets before the war had tended to disappear by 1943. By the latter year the United Kingdom diet had, however, fallen to about 10 per cent. below the other two countries in total food consumption (measured in calories) and considerably further below in most of the preferred food groups.