Protein is having a major moment. From protein bars and shakes to high-protein pasta and cereal, it seems like everyone is chasing their daily protein goal. It’s for a good reason – protein is essential for building muscle, repairing tissues, and helping you stay full.

But while protein has become the nutrition world’s celebrity, fiber has quietly been ignored.

It may not be the flashiest nutrient, but fiber plays a huge role in keeping your body healthy. In fact, many people are so focused on getting enough protein that they forget to ask an equally important question: Am I getting enough fiber?

Why Fiber Matters

Fiber is a type of carbohydrate found in plant foods that your body can’t fully digest. Instead of being broken down, it travels through your digestive system, helping things run smoothly along the way.

Its most famous job is preventing constipation, but that’s only part of the story.

Fiber helps keep your digestive system healthy, supports heart health by helping lower cholesterol, and slows the absorption of sugar into your bloodstream. That means steadier energy levels and better blood sugar control.

It also helps you feel full longer, making it easier to avoid unnecessary snacking. If you’ve ever wondered why you’re hungry an hour after eating a protein bar, it might be because your meal was missing fiber.

Perhaps one of fiber’s biggest superpowers is supporting your gut microbiome, the trillions of beneficial bacteria living in your digestive system. These bacteria rely on fiber as food, and a healthy gut has been linked to improved digestion, stronger immunity, and even better mood.

Protein vs. Fiber? Not So Fast.

This isn’t about choosing one over the other. Protein and fiber are teammates, not competitors.

Protein helps build and repair your body, while fiber helps keep many of your body’s systems running efficiently. The healthiest meals often include both.

Think grilled chicken with roasted vegetables instead of chicken alone. Or Greek yogurt topped with berries instead of eating it plain. Small additions can make a big difference.

Are You Getting Enough?

Most adults should aim for 25 to 38 grams of fiber each day, depending on age and sex. Unfortunately, many people don’t even come close.

One reason is that processed foods often contain very little fiber. Another is that many high-protein foods, such as meat, eggs, and dairy, naturally contain little or no fiber.

That doesn’t mean you should eat less protein. It simply means your plate should also include fiber-rich foods like fruits, vegetables, beans, lentils, nuts, seeds, and whole grains.

Try adding fruit to your breakfast, choosing whole-grain bread instead of white bread, toss beans into soups or salads, or swap chips for nuts or fresh vegetables.

If you’re increasing your fiber intake, do it gradually and drink plenty of water. Your digestive system will appreciate the adjustment.

Give Fiber the Attention It Deserves

Nutrition trends come and go, but balance never goes out of style. While protein absolutely deserves a place on your plate, fiber deserves one, too. Together, they help support everything from digestion and heart health to energy and long-term wellness.

So the next time you’re checking the protein content on a food label, take a quick look at the fiber, too.

References

Academy of Nutrition and Dietetics. (2022). Fiber. https://www.eatright.org.

Harvard T.H. Chan School of Public Health. (n.d.). Fiber. https://www.hsph.harvard.edu/nutritionsource/carbohydrates/fiber/.

Mayo Clinic. (2024). Dietary fiber: Essential for a healthy diet. https://www.mayoclinic.org.

U.S. Department of Agriculture & U.S. Department of Health and Human Services. (2020). Dietary Guidelines for Americans, 2020–2025. https://www.dietaryguidelines.gov.

World Health Organization. (2023). Healthy diet. https://www.who.int/news-room/fact-sheets/detail/healthy-diet.