Estimation of nutritional intakes revealed a significant change in fat intake by BMI category: underweight wo- men consumed significantly more fat than normal. En- ergy intake did not differ significantly among groups, but fat as a percentage of the total energy intake in all groups exceeded 30%, although 20% to 30% is the recommen- dation. Overall, this suggests that fat intake is slightly excessive and nutritional balance is not optimal, espe- cially among underweight woman. Previous study, which examined the nutritional status and PFC balance (that mean the balance of protein, fat, and carbohydrate energy ratio) using the FFQ by comparing weight gain during pregnancy in Japanese women, shows that all the groups with weight gain had a shortage of nutrient intake and the groups of overweight and underweight had signifi- cantly higher intakes of fat [15].