Table 1. Intake level goals for moving on to the next stage of the TTM according to current intake status.

TTM: the transtheoretical model

¹⁾The goals of intake level for the following one week are set based on the current intake level. Subjects need to move one step forward compared to the current intake level if it is less than the ultimate goal. The ultimate goals of weekly intake levels for each food group are: vegetables ≥ 5 times a day; fruits ≥ twice a day; no intake of sugar-sweetened beverages, fast food and instant food, snacks, and late-night snacks

²⁾Intake frequency of late-night snacks is measured only weekly.