Answers are grounded in this paper and cite their sources.
A huge gap existed between enjoyable dietary habits and clinical practice until 1980s. The gap, however, is considerably narrowed, because the main proportion of diseases has changed drastically from acute to chronic in Japan during the last several decades. Clinical practice has also evolved from experience- to evidence-based since mid-1990s.
No takes yet. Share an insight, caveat, or question.
Ryosuke Shoda (2022) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: