The Surprising Observation of Johann Hari
During a recent visit to a school in Koenji, a district in western Tokyo, Scottish journalist and author Johann Hari made an astonishing observation: there was not a single overweight child among the 1,000 students.
Hari, known for his expertise in wellness and the impacts of modern life on health, shared his experience on the popular podcast The Diary of CEO, highlighting the strict nutritional standards enforced in Japanese schools.

Japan’s Nutritional Laws
One striking aspect of the school system in Japan is that every school is mandated by law to employ a professional nutritionist. Hari noted, “Every meal has to be prepared from scratch at the start of the day, and no kid is allowed to bring in a packed lunch. Everyone has to eat the food prepared at school.” This approach not only promotes health but also serves as a teaching tool, incorporating important lessons about wellbeing.
Hari emphasized a key cultural norm in Japan: children eat until they are 80% full and then stop. A typical dinner may consist of five different dishes, each served in significantly smaller portions compared to Western standards.
A Day of Learning and Eating
After a day at the Koenji school, Hari remarked on the jarring absence of childhood obesity, pointing out Japan’s extraordinarily low rates. The striking difference in dietary habits was brought to light when the children reacted with disbelief upon viewing typical British school lunches, asking, “Where’s the salad?”
The conversation around childhood nutrition has sparked significant discussions on social media platforms, especially in contrast to rising obesity rates observed in Western nations.
Wider Implications
The discussion confirmed broader patterns observed in Japan, where life expectancy is among the highest globally. This is attributed not only to dietary habits but also to a unique cultural emphasis on health education.
Comparatively, Australian health trends indicated that one in four children were classified as overweight or obese in recent years, raising concerns about long-term health implications.
Conclusions
Japan’s stringent nutritional standards and culturally ingrained practices present a notable contrast to the experiences seen in Western countries. As the world looks to address growing childhood obesity rates, Japan’s model offers critical insights into fostering healthier generations.

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