Move over protein—the best fiber supplements are about to take the wellness-savvy spotlight. Fiber intake has almost always been on doctors’ and dietitians’ radars, thanks to its role in digestion, cardiovascular health, and disease prevention. We know it’s not particularly sexy—gut health isn’t as showy as muscle-building—but it does a lot behind the scenes like helping regulate blood sugar, promote satiety, and reduce LDL cholesterol levels. It also (famously) keeps your bowel…

