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Lipid composition of gastric juice in healthy men under conditions of maximum secretion following pentagastrin stimulation and during an intensified histamine test. Acta Physiol. Pol., 1977, 28 (6): 511-514. The authors studied the changes in lipid concentration of gastric juice under conditions of basic secretion (15 subjects), maximum secretion after pentagastrin stimulation (12 subjects) and during intensified histamine test (15 subjects). It was found that gastric juice contains similar lipid components to the blood plasma, however, their concentrations significantly lower. After histamine stimulation and even more after pentagastrin stimulation, concentration of some lipid fractions increases. The increase in glyceride and cholesterol ester concentrations in the gastric juice under conditions of maximum secretion may be due to the increase of lipid components originating from the blood plasma.