Takizawa: So strong support from women has sustained the magazine until now.
Nishizawa: Yes. Nikkei Health initially targeted male readers, but later shifted its readership entirely to women. In 2008, while searching for simpler, more accessible ways to prevent postprandial hyperglycemia—which contributes not only to diabetes but also to obesity and skin aging—we drew inspiration from the concept of "ladies first" and coined the term "Vegetable First." This approach suggests that even when eating the same meal, instead of starting with white rice or bread, which cause blood sugar to rise quickly, begin with vegetables rich in dietary fiber that help prevent sharp spikes. You can start doing this today, right?
When I introduced this method in magazines and other publications, women responded immediately. Simply stating "post-meal hyperglycemia is dangerous" likely wouldn't have resonated as much. However, when backed by supporting evidence about the risks and presented in clear terms showing how a simple eating approach can reduce that risk, people definitely respond. Based on this experience, I believe the functional food market will also see steady, stable growth going forward. This will happen by translating robust evidence into easy-to-understand stories about how to consume foods, how to structure meals, or how to combine them with complementary health practices for synergistic effects. For example, research will likely advance rapidly, showing not just how to consume a single food type, but how eating meals with specific balances can effectively maintain physical health and improve bodily functions. We may enter an era where multiple companies propose combinations of foods and dietary approaches, rather than a single company promoting its own product in isolation.
The functional properties of food are also closely linked to "preventive medicine."
Nishizawa: Additionally, I believe dietary fiber will likely see growing interest over the next 10 to 20 years. Recent TV programs covering gut microbiota have generated significant buzz, and I've received many inquiries asking, "Can we develop products targeting the gut?" We're now understanding how gut microbiota composition deeply influences everything from lifestyle diseases and weight management to mental health, and even the future health of children born to pregnant women. Dietary fiber serves as food for beneficial bacteria within the gut microbiota, such as lactic acid bacteria and bifidobacteria. This means insights into which carbohydrates containing dietary fiber promote a healthy gut microbiota should form a foundational health strategy. Numerous research papers on gut bacteria have already been published in authoritative journals. This gut microbiota research will also yield significant results for "preventive medicine," which identifies diseases with high future risk and prevents their onset. Preemptive medicine, highlighted as a key concept at the 29th General Assembly of the Japan Medical Association held in April, represents a concept that goes a step further than preventive medicine.
This field of preemptive medicine must be developed to reduce annual healthcare costs, which amount to 40 trillion yen, and to change the current situation where, despite having the world's longest life expectancy, there is a gap of 12.4 years between average life expectancy and healthy life expectancy (for Japanese women). Food is deeply involved in this. The evolution of the functional food labeling market is likely to drastically transform food-related business over the next 10 to 20 years.