How to Avoid Dreaded “Traveler’s Diarrhea”

raspberries, tops out at 8 grams of fiber per serving. Many fiber supplements have just 2-5 grams of fiber. Compare that to more than 30 grams in one fiber-added bagel.

“The concern here is that you can end up eating an extremely high amount of fiber at once without much built-in water,” says Duker. “This can have a ‘bricklike’ effect in the bowel.”

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