Is the consumption of carbonated water beneficial for health, or are there potential drawbacks to consider?

The body needs CO2 for oxygen to be absorbed into the cells. You can even put your body in a hypoxic state (low oxygen state) by depriving your tissues of CO2. Carbonated spas or baths are used in some places for people with circulatory problems or diabetic wounds. It’s also used as a therapy for people after a stroke and to decrease the rate of amputation.

While I wasn’t able to find research on the health benefits of carbonated water, I did find some parallel research on CO2. CO2 is a potent anti-tumor, anti-cancer, and anti-inflammatory gas. One study found a significant increase in the activation of the parasympathetic nervous system by increasing CO2. The parasympathetic nervous system counters fight or flight mode and supports healing, digestion, and sleep.

CO2 is a key factor we can’t ignore. You can increase your CO2 by breathing through your nose, especially while you sleep or exercise. Hot springs also have a significant amount of CO2. It’s even used in certain skin creams.