Crossword clue: the theory of promoting health and longevity by means of diet (especially whole beans and grains)

The most common answer is macrobiotics (12 letters).

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

macrobiotics 12 letters wn-def

the theory of promoting health and longevity by means of diet (especially whole beans and grains)