Abstract
Patients with fungal‐type dysbiosis of the gut whose symptoms had cleared were asked to fill in questionnaires concerning current and previous fungal diseases and the effects of reintroducing certain foods into the diet. In 84% of cases symptoms had cleared on diet alone, the remaining 16% required antifungal therapy in addition to dietary intervention. When yeast extract, leavened bread, alcoholic drinks and mould‐containing cheeses were serially re‐introduced into the diet, over half the patients reported recurrence of symptoms with each of the foods, but the pattern varied with different patients, few reacting to all they tested. Many had, or had had, fungal diseases but no adequate published surveys of the prevalence of current or past fungal diseases were identified for comparison after a careful literature search. The implications of these findings are discussed.