A team from Italy assessed the effect of carbonated water intake in patients with functional dyspepsia and constipation.
A total of 21 patients with dyspepsia and secondary constipation were randomized into 2 groups in a double blind fashion.
One group (n = 10) drank carbonated water and the other (n = 11) tap water, for almost 15 days.
Patients were evaluated for dyspepsia and constipation scores.
Before carbonated water: 40%
| European Journal of Gastroenterology & Hepatology |
They also underwent a satiety test by a liquid meal, and radionuclide gastric emptying, sonographic gallbladder emptying, and colonic transit time using radio-opaque markers.
The authors found that the dyspepsia score was significantly reduced with carbonated water (before = 7.9 vs after = 5.4). However it remained unmodified after tap water (9.7 vs 9.9).
The constipation score also decreased significantly after carbonated water (16.0 vs 12.1) and was not significantly different with tap water (14.7 vs 13.7).
In addition, satiety was significantly reduced with carbonated water (447 kcal vs 590 kcal).
Gallbladder emptying was also significantly improved only with carbonated water (40% vs 17%).
Rosario Cuomo, from Naples, Italy, concluded on behalf of the group, "In patients complaining of functional dyspepsia and constipation, carbonated water decreases satiety and improves dyspepsia, constipation, and gallbladder emptying."