The bubbles in soda water can improve digestion. Some studies say the carbonation helps you swallow and feel fuller. Go figure.
Seltzer is zero calories, zero sugar, zero guilt. That’s why it’s the mascot of diet culture.
But here’s a wild one: cold water holds more carbonation than warm water. That’s why your seltzer goes flat faster on a hot day.
In the 1920s, soda fountains sold seltzer as a medicinal cure for headaches. Doctors didn’t know it was just bubbles—and placebo.