10 High-Fiber Foods That Improve Actually Digestion

These fibers act as prebiotics, meaning they serve as fuel for beneficial gut bacteria. When microbes ferment these fibers, they produce short-chain fatty acids that help support gut lining integrity and reduce inflammation.

1. CHIA SEEDS

Chia seeds are rich in soluble fiber, which forms a gel-like texture when hydrated.

That gel slows digestion and regulates how quickly food moves through the digestive tract. It also feeds beneficial gut bacteria, which ferment fiber and produce short-chain fatty acids such as butyrate, compounds associated with improved gut barrier integrity and reduced inflammation.

In simple terms, chia helps create a digestive environment that is slower, smoother, and more stable.

If you’re not a fan of the texture of chia seeds, try blending them with liquid to make a chia mousse. The result is much creamier, so you get all the benefits without the tiny granules. I have four different ways I like to make chia mousse if you need some inspiration.

Chia Recipes To Try: High Protein Chia Pudding (No Protein Powder Needed), Mango Coconut Chia Mousse, 10-Minute Raspberry Chia Jam

Lentils provide a combination of soluble fiber, insoluble fiber, and resistant starch, making them particularly helpful for digestive regularity.

Resistant starch escapes digestion in the small intestine and becomes fuel for beneficial gut microbes in the colon. That fermentation process supports microbial diversity and the production of short-chain fatty acids that help maintain colon health.

Easy way to eat it

• Lentil soups

• Lentil salads

• Lentil breakfast bowls

Lentil Recipes To Try: Olive Herb Lentil Bread, Coconut Carrot Lentil Soup, Baked Chicken and Rice with Lentils, Eggplant Lasagna With Lentils

Artichokes are one of the richest dietary sources of inulin, a prebiotic fiber that selectively feeds beneficial bacteria such as Bifidobacteria.

Research shows that inulin consumption can significantly increase populations of these beneficial microbes while improving stool frequency and overall digestive comfort.

Think of artichokes as fertilizer for your gut microbiome.

Easy way to eat it

• Steamed artichokes

• Artichoke salads

• Added to pasta or grain bowls

Artichoke Recipes To Try: Artichoke Salad (12g fiber per serving), Spinach Artichoke Pizza, Plant-Based Spinach Artichoke Frittata

These fibers slow digestion, regulate glucose absorption, and help create a more stable digestive environment.

Oats contain beta-glucan, a soluble fiber known for supporting both digestive and metabolic health.

Beta-glucan forms a viscous gel during digestion that slows gastric emptying and helps regulate glucose absorption. When food leaves the stomach more slowly, glucose enters the bloodstream at a steadier pace instead of all at once. This helps prevent sharp blood sugar spikes and crashes, which often translates into more stable energy and longer-lasting fullness.

Fermenting oats before cooking can improve mineral absorption and reduce phytic acid, making them even easier to digest. I personally love making fermented oats. It’s one simple extra step that makes all the difference in how they digest.

Easy way to eat it

• Fermented overnight oats

• Savory oat bowls

• Steel-cut oatmeal with protein

Oatmeal Recipes To Try: Fermented Oats (And why you should be fermenting your oatmeal), Golden Turmeric Oatmeal, Savory Oatmeal with Salmon and Sweet Potatoes, Baked Blueberry Oatmeal

Buckwheat is a naturally gluten-free seed that provides fiber along with resistant starch and polyphenols.

These compounds help support microbial fermentation in the gut while also providing antioxidant benefits. Buckwheat is also rich in rutin, a flavonoid studied for its protective effects on blood vessels and metabolic health.

Because buckwheat is minimally processed compared to most refined grains, it tends to digest more slowly and feel more grounding, making it a particularly satisfying option for people trying to stabilize energy and support gut health.

Easy way to eat it

• Buckwheat porridge

• Buckwheat waffles

• Buckwheat grain bowls

Buckwheat Recipes To Try: Buckwheat Granola, Buckwheat Waffles (4g fiber per waffle), Buckwheat Pancakes

Sauerkraut provides both fiber and fermentation.

The cabbage itself supplies fiber that supports digestive movement, while the fermentation process introduces beneficial microbes that help increase gut diversity. During fermentation, bacteria begin breaking down some of the plant fibers and natural sugars in the cabbage, making the food easier to digest while also introducing live microbes such as Lactobacillus, Leuconostoc, and Pediococcus. These bacteria are commonly found in fermented vegetables and are associated with a more diverse and resilient gut microbiome.

Fermented vegetables have been associated with improved microbiome diversity and reduced markers of inflammation in the gut environment.⁶ Because of that, fermentation has become one of my favorite tools for supporting digestion. I’m a bit obsessed with it and share beginner-friendly fermentation videos here on Substack every Friday.

Easy way to eat it

• Add to breakfast bowls

• Serve with meats or salads

• Top roasted vegetables

Sauerkraut Recipes To Try: Fermentation 101 - The Essential Sauerkraut Recipe, Ginger Turmeric Sauerkraut

Berries provide fiber along with polyphenols, plant compounds that beneficial gut microbes can metabolize. These polyphenols act almost like a selective fertilizer for certain bacteria and may help improve microbial diversity while supporting metabolic health.

Berries also tend to be lower in sugar and higher in fiber than many fruits, making them easier on digestion. Their fiber helps slow the absorption of natural sugars, which can prevent sharp blood sugar spikes and the energy crashes that often follow.

Easy way to eat it

• Yogurt bowls

• Smoothies

• Overnight oats

These fibers add bulk and hydration to stool, helping food move more smoothly through the digestive tract and supporting regular bowel movements. In practical terms, this means less sluggish digestion, fewer episodes of constipation, and a digestive rhythm that feels more predictable instead of irregular.

Flax seeds contain both soluble fiber and mucilage, which help soften stool and support smoother movement through the digestive tract. Mucilage is a type of plant fiber that becomes thick and gel-like when it absorbs water. In foods like flax seeds, it forms a slippery coating during digestion that helps keep stool hydrated and easier to pass, supporting more comfortable and regular elimination.

In simple terms, mucilage acts a bit like a natural lubricant for the digestive tract, helping support smoother and more regular bowel movements.

Flax seeds are also rich in lignans, plant compounds that may support anti-inflammatory pathways and metabolic health.

Easy way to eat it

• Ground flax in smoothies

• Add to oatmeal

• Sprinkle into yogurt bowls

Flax Seed Recipes To Try: 3-Ingredient Flax Seed Wraps, Quinoa Overnight Porridge

Beans are one of the most powerful foods for improving digestive regularity.

They contain fermentable fibers and resistant starch that feed beneficial microbes while increasing stool bulk.

Regular legume consumption has been associated with improved gut microbiome diversity and better bowel function.⁹ The key is introducing them gradually so the microbiome has time to adapt.

Easy way to eat it

• Bean soups

• Bean salads

• Added to grain bowls

Bean Recipes To Try: White Bean Mushroom Soup, Warm Roasted Veggie Salad With White Bean Puree, White Bean Quinoa Chili

Sweet potatoes contain both soluble fiber and resistant starch, particularly when cooked and then cooled.

This combination helps support digestive movement while also feeding beneficial microbes in the colon. Resistant starch fermentation has been linked to improved gut health and metabolic outcomes.

Easy way to eat it

• Roasted sweet potato bowls

• Breakfast hash

• Mashed sweet potatoes

Sweet Potato Recipes To Try: Loaded Sweet Potato Nachos, Sweet Potato Bread, Sweet Potato Hummus