How to Add More Fiber to Your Diet

Let’s talk fiber. Most people are not getting enough of it, and your body notices. Fiber plays a major role in digestion, heart health, and blood sugar control and helps you stay full longer. Most adults should aim for about 25–38 grams of fiber daily, but many fall short.

Fiber supports your body in several important ways:

• Supports healthy digestion
• Helps you feel full longer
• Supports heart health
• Helps manage blood sugar levels
• May lower the risk of certain chronic diseases

But adding more fiber doesn’t have to mean eating boring foods or making complicated recipes. Here are three simple, delicious, and budget-friendly high-fiber foods I love to recommend as a registered dietitian. I also share some easy ways to use them in everyday meals.

1. Chia Seeds. Tiny seeds. Big nutrition. Chia seeds are packed with fiber, omega-3 fats, and plant-based nutrients. Just 2 tablespoons provide around 10 grams of fiber.

Easy Ways to Use Chia Seeds:

• Add to oatmeal
• Stir into yogurt
• Blend into smoothies
• Make chia pudding
• Sprinkle on salads or fruit

Registered Dietitian Tip: Start small when adding chia seeds to your routine and drink plenty of water. Fiber works best when paired with hydration.

2. White Beans. Affordable, filling, and versatile. Beans are one of my favorite high-fiber pantry staples. They also provide protein, making them a great addition to balanced meals.

Easy Ways to Use White Beans:

• Add to soups
• Mash into dips
• Toss into salads
• Blend into pasta sauces for creaminess
• Add to rice bowls

Registered Dietitian Tip: Using canned beans? Rinse them under water to help reduce excess sodium while keeping the fiber benefits.

3. Raspberries. Sweet, juicy, and packed with fiber. Raspberries are one of the highest-fiber fruits you can buy, with about 8 grams of fiber per cup.

Easy Ways to Use Raspberries:

• Top oatmeal or cereal
• Add to smoothies
• Freeze for a refreshing snack
• Mix into yogurt parfaits
• Pair with dark chocolate for a simple dessert

Registered Dietitian Tip: Frozen raspberries are often more budget-friendly and last longer than fresh berries — great for smoothies and snacks.

Try these combos. Pairing fiber-rich foods together gives you an even bigger nutritional boost:

• Oatmeal + chia seeds + raspberries
• Rice bowl + white beans + greens
• Yogurt + raspberries + chia seeds
• Salad + beans + nuts or seeds

When increasing fiber, go slowly. Adding too much too fast can cause bloating or discomfort. Start with one small change at a time and focus on consistency. A quick tip is to add 5 grams of fiber weekly until you reach your goal and always increase your water intake. Fiber works best when paired with hydration.

Remember, healthy eating does not have to be expensive or complicated. Small additions — like chia seeds, beans, and berries can make a big difference over time.

Which high-fiber food are you adding to your plate first?

For more information about fiber, its health benefits, and how to get more fiber in your diet, check out the Academy of Nutrition and Dietetics and the American Heart Association.