Long-term chronological data

The annual changes in nutrient intake from 1946 to the present are summarized based on the reports.
The survey design and items of National Health and Nutrition Survey have been revised many times since the survey began. Please refer to the "Changes in survey methods" and the "Changes in food group classification" when interpreting the survey results.

long time series data

data	file
Nutrient Intake	1946～2019
Intake by Food Group	1946～2019

Reference

• Changes in survey methods
• Changes in food group classification