Abstract
The validity of a “convenient method” to obtain information on food and nutrition was evaluated. Dietary information for one day taken from 99 women college students was investigated by two methods. One method was a “convenient dietary questionnaire” on their food consumption. Six food groups (such as 1. fish, meat, eggs and soy bean products, 2. milk and dairy products, 3. vegetables, 4. fruits, 5. cereals, potatoes, sugar and 6. fats and oils) were examined to estimate the intake of dietary nutrients. Another method was a precise quantification of dietary intakes which was done in the same manner as the national nutrition survey.
There was a correlation on the energy, carbohydrate and protein intakes between the “convenient method” and the ordinary survey method. However, no correlation was observed on the fat intake. The subjects who were unable to fit the regression line showed a relative larger intake of fat. In case of the “convenient method” recording of the fat intake was relatively lower than when ordinary methods were employed.
These observations appear to be caused from the unsatisfactory questionnaire on food consumption in the “convenient method”.
If the questionnaire on fat intake could be improved, the “convenient method” can be useful to estimate the intake of dietary nutrients.
