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Mastication and acid secretion.
  1. P. Dubey,
  2. S. Nundy


    The gastric acid response and the buffer capacity of the stomach were measured in 30 control subjects and 22 duodenal ulcer patients in response to a masticatory (solid) and a non-masticatory (homogenized) meal having the same chemical composition. The peak acid output values were equal after a masticatory and after a non-masticatory diet in control subjects (masticatory 18.1 +/- 1.2, non-masticatory 15.7 +/- 1.3 mmol/hr) as well as in duodenal ulcer patients (masticatory 35.7 +/- 1.5, non-masticatory 33.7 +/- 1.1 mmol/hr). The buffer capacity of the stomach contents 1 hr after the meal was significantly greater after a masticatory diet than a non-masticatory diet in both controls (14.6 +/- 1.4 and 9.0 +/- 1.9 mmol) and in duodenal ulcer patients (9.5 +/- 1.5 and 7.5 +/- 1.2 mmol). Duodenal ulcer patients had a significantly lower buffer capacity compared with controls. Masticatory diets may play a part in protecting individuals from developing duodenal ulcer.

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