Worth noting that Olipop's fiber comes from inulin, which can be purchased as a supplement and dissolves in water nicely. I'm very curious why inulin is such an unknown product - its a polysaccharide, so it tastes mildly sweet despite having minimal to no impact on glucose levels.
You'd think we'd have been supplementing almost all sugary foods/drinks with it for years, since it's a cheap and healthy sweetener.
The human body lacks the enzyme to digest inulin, it passes through the gut and feeds the gut bacteria, which I guess is why it's labeled a pro-biotic? Jerusalem artichoke (the root of a sunflower, Jerusalem is a corruption of girasole) contains a high concentration of inulin. This tuber is usually found served at upper-end swanky restaurants. One year I found it at a farmer's market, bought a bunch and gleefully carted it home. It was rather delicious. Also, gas that would turn a cow inside out. Beware.
You'd think we'd have been supplementing almost all sugary foods/drinks with it for years, since it's a cheap and healthy sweetener.