Fiber is a plant-based nutrient that the body can't digest, but it plays a crucial role in maintaining good health. Unlike other food components such as fats, proteins, or carbohydrates—which your body breaks down and absorbs—fiber isn't digested by your body. Instead, it passes relatively intact through your stomach, small intestine, and colon and out of your body. It might seem like fiber is just along for the ride, but it's actually a nutritional VIP with tickets to the gut health gala.
The significance of fiber lies in its diverse benefits: it helps regulate the body's use of sugars, keeping hunger and blood sugar in check. High-fiber foods are more filling than low-fiber foods, so you're likely to eat less and stay satisfied longer. And because fiber stays in the stomach longer than other foods, that feeling of fullness will stick with you throughout the day. But wait—there's more! Fiber can also lower cholesterol levels, help control blood sugar levels for people with diabetes, and prevent constipation. If nutrition were a team sport, fiber would be the all-rounder you'd definitely want on your side.