Carbonated water accelerates glucose absorption by cells.
Carbonated water may affect metabolism. Scientists from Kyushu University (Japan) have found that the carbon dioxide dissolved in it can accelerate glucose absorption by cells. As shown in a study published in BMJ Nutrition, Prevention & Health, when CO₂ enters the bloodstream, it converts to bicarbonate, raising the pH inside red blood cells and activating glycolysis — the process by which cells begin to use sugar more actively.
The researchers compared this effect to the changes observed during hemodialysis: in both cases, the elevated CO₂ level stimulates cellular metabolism. Although the reduction in blood sugar was modest, the mechanism indicates that carbon dioxide may play a role in regulating energy metabolism.
The authors emphasize that carbonated water is not a weight-loss remedy, but it may induce a mild feeling of satiety and temporarily lower glucose levels. The scientists believe that this effect deserves further study — especially in the context of preventing metabolic disorders.
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