Abstract
Annual changes in polyunsaturated fatty acid (PUFA) intake per capita per day and the ratio of vitamin E to PUFA (E/PUFA) were calculated based on the data conducted from 1983 to 1988 by the National Nutrition Survey using the PUFA weighted average tables of Japanese foods, previously reported. In addition, the investigation was proposed to clarify the environmental factors on PUFA intake, (such as family members and the other environmental factors) including food habits. The people with the maximum intake of PUFAs resided in the class with three family members, in the 30 to 49 year old class, and in the class of the highest amounts of expenditure. From this survey it is verified that increase in daily intake of fats and oil, protein and energy reflected the increase in PUFA intake. The mean of the intakes of vitamin E, PUFAs and the ratio of E(mg)/PUFA(g) were 9.35±0.17 mg, 16.7±0.40 g and 0.56±0.01, respectively. Individually, the people who had undesirable balanced diet, also took either very small or large amounts of PUFA intakes.
