Japan’s Ministry of Agriculture, Forestry and Fisheries asked adults how many days per week they ate all three types of dishes at least twice in one day. The percentages describe self-reported weekly frequency; researchers did not observe or score each meal.
Percentage reporting the combination almost every day
36.8% of all adults and 23.3% of adults ages 20–39 selected “almost every day.”
What the three labels mean
The survey grouped dishes by their main role, not by the number of plates.
A staple dish includes rice, bread, or noodles. A main dish centers on fish, meat, eggs, soybeans, or soy products. A side dish centers on vegetables, mushrooms, potatoes, or seaweed.
A rice bowl or curry can contain more than one role on the same plate. Counting plates alone can therefore misclassify a meal; check the foods inside a combined dish.
A three-day check
Find which role is repeatedly absent before deciding what to add.
For three days, mark each meal with S for staple, M for main, and V for a vegetable-centered side. For rice bowls, sandwiches, or curry, mark every role that the combined dish contains.
If the same role is absent several times, choose one realistic addition for the next grocery trip or meal: a vegetable side, a protein-rich main, or a staple. The survey percentages describe a population; they do not make one meal a pass or failure.
How MorselFlow fits
Use the timeline to check patterns across several meals.
MorselFlow suggests separate food items from a set meal or lunch box photo. Review and correct the suggestions before saving.
The app does not grade meals as staple, main, and side. You can use the photo timeline to conduct the three-day check yourself.
The figures in this article come from population guidance or research. They are not personal diagnosis, treatment, or nutritional advice. Food, portion, and nutrition suggestions are estimates and may differ from the actual meal.