“One way to beat irregularity and constipation is by eating fiber-rich foods like beets,” says Leslie Bonci, RD, sports nutritionist at Pittsburgh-based company Active Eating Advice. One cup of beets delivers about 4 grams of dietary fiber, particularly insoluble fiber, which helps reduce the risk of constipation, hemorrhoids, and diverticulitis. The betaine found in beets has also been shown to improve digestion. Just take note, your pee isn’t the only thing beets turn pink. Don’t be alarmed if you see crimson-colored stools 24 to 72 hours following a meal heavy in beets.