While some people might be indignant at the thought of the government creating laws around food habits, the goal was not to put the entire population on a diet. Rather, the purpose of shokuiku is about developing a healthy perspective related to food and lifestyle choices that benefit physical and mental well-being, as well as local food markets and traditions (via MAFF). As Cultural Atlas notes, Japan is a collectivistic culture that supports harmony within its population. In this context, it seems valuable to incorporate food education since food is a unifying factor among people, and can also be the source of many health issues.
Thankfully, shokuiku doesn’t entail counting calories or other especially quantifiable methods of assessment. Instead, Healthline explains that it is more about finding balance in food choices and using one’s intuition to make appropriate decisions that nourish the body and mind. As well, school programs teach about food labels, seasonal eating, production, cooking, and how your nutritional needs change throughout your lifetime (via Healthline).