Fiber: Why It Matters and Easy Ways to Get More

October 07, 2026

Fiber rarely gets much attention. It doesn't come in trendy packaging, and nobody brags about their intake. But it's a basic part of a balanced diet, and many people don't get as much of it as they might think.

What Fiber Is

Fiber is the part of plant foods your body doesn't fully digest. Instead of being broken down and absorbed like other nutrients, it moves through your digestive system and plays a role along the way. You'll find it in vegetables, fruit, whole grains, beans, lentils, nuts and seeds. Animal foods like meat, eggs and dairy don't contain it.

Two Types, Both Useful

Foods usually contain a mix of two kinds:

Soluble fiber dissolves in water and forms a gel-like texture. Oats, beans, apples and citrus fruit are common sources.
Insoluble fiber doesn't dissolve and adds bulk. Whole grains, nuts and the skins of many vegetables are common sources.

You don't need to track them separately. Eating a variety of plant foods covers both.

Why Fiber Matters

Fiber supports normal digestion and tends to make meals more filling, which is one reason a bowl of oats or a lentil soup can keep you satisfied longer than a refined-carbohydrate snack. It also feeds the bacteria that live in your gut, which is part of why dietitians often describe fiber as a foundation of everyday eating.

Needs vary by age, sex and overall health, so there's no single number that fits everyone. A registered dietitian or healthcare provider can help with your specific needs.

Five Easy Ways to Get More

Keep the skin on. Apples, pears, potatoes and cucumbers retain more fiber with their skins.
Swap one refined grain for a whole grain. Try brown rice, oats, or whole-grain bread in a meal you already eat.
Add beans or lentils. A handful in a soup, salad or grain bowl is enough.
Snack on fruit, nuts or seeds. They pair well with protein, such as an apple with peanut butter.
Add vegetables to the meals you already make. Spinach in eggs, extra vegetables in pasta, or a side salad all count.

Go Gradually and Drink Water

If you're not used to much fiber, a sudden increase can cause bloating or discomfort. Add it gradually over a few weeks and drink enough fluids, since fiber works best with adequate water. If discomfort continues, or you have a digestive condition, check with a healthcare professional before changing your diet significantly.

The Takeaway

Fiber isn't a trend or a supplement category. It's an everyday part of eating well, found in foods you likely already enjoy. Small, steady additions are easier to keep up than a dramatic overhaul.