Since 2000, many Asian countries began acutely experiencing the “double burden” of coping for over- and under-nourishment. With many centenarians, Japan is often viewed as a country with praiseworthy dietary outcomes. It is common to ask for advice from these record-holders: “What do you eat?” This respect for generational dietary knowledge, however, is not uniformly shared throughout East Asia, as people tend to assume that elderly people cannot offer advice suited to the hyperactive urban areas of Asia. Our team, in contrast, believes that by including previous generations in WHO-style ‘community-based’ nutrition initiatives, we can unlock their potential to help solve the underlying problems of unstable work-life balance in families, disadvantaged urban communities, and unhealthy dietary behavior. And we can make visible the undervalued contribution to nutrition support in poorer communities by grandparents, retired volunteers in local kitchens, and elderly supporters of religious charity. To accomplish this, we set three goals. (1) Learning how food knowledge of previous generations is adapted to urban realities; (2) Discovering how previous generations help counteract negative dietary and lifestyle impacts in family and community; (3) Promote the unrecognized value of previous generations and increase their prominence in community and national policy, and multilateral programs.