抄録
The seasonal variations of the serum ascorbic acid and choline contents were studied on the farmers in the rice-producing districts of Iwate prefecture. The mean content of the serum ascorbic acid was 0.671±0.063mg/dl in June, 0.841±0.187 mg/dl in August, 1.080±0.244 mg/dl in November and 0.518±0.092 mg/dl in February. Those of the serum choline were 33.4±11.0,39.9±17.6,39.4±14.5,and 31.9±7.9mg/dl in the same order.
