title: A critique of "fiber deficiency".
mesh_terms: D000349:Africa; D000368:Aged; D003108:Colonic Diseases / Q000453:epidemiology / Q000209:etiology / Q000503:physiopathology; D004032:Diet / Q000009:adverse effects*; D004063:Digestion; D004739:England; D006801:Humans; D008875:Middle Aged; D014481:United States