PubMed · 14301196
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M W OHNSON. 1965-07-08. SOYBEANS AND THYROID.. https://pubmed.ncbi.nlm.nih.gov/14301196/
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Functional dyspepsia (FD) remains a relatively poorly characterized gastrointestinal disorder of unknown etiology that is frequently difficult to manage. A systematic review of the literature relating to food intake and FD is summarized here. Many patients with FD report symptoms after meal ingestion, including fullness, bloating, epigastric pain, nausea, and vomiting, and this has been interpreted as indicative of an underlying "motor disorder of the stomach or small intestine." Such hypotheses are, however, still largely unsubstantiated, and the data that do exist are inconclusive, particularly as few studies have directly examined the temporal relationships between dyspeptic symptoms, meal ingestion, and disordered gastric motility. Moreover, studies attempting to relate symptoms to specific disturbances in gastric motor function have, in most cases, not evaluated symptoms concurrently with the function test, and/or have used suboptimal symptom scoring to quantify symptoms. Furthermore, the term "early satiety" has been used loosely as a symptom, rather than a quantitative measure of food intake. Currently, the most widely accepted mechanism underlying FD is visceral hypersensitivity, which may contribute to both enhanced motor and symptomatic responses to food ingestion. However, the possible contribution of food and dietary habits to the induction and/or exacerbation of dyspeptic symptoms represents a relatively new area-despite frequent reports by patients that their symptoms are often related to food ingestion; this association has not been formally assessed. Dietary assessments have frequently implicated fatty foods in symptom induction, and these findings are supported by laboratory-based studies, particularly the demonstration that FD patients more often experience symptoms after intraduodenal infusions of fat, than glucose. Further studies into the potential role of dietary factors in the induction of dyspeptic symptom are required to establish whether dietary therapies have any place in the management of FD.