The Fiber Table
Foods

Whole Grains Guide: Which Ones Have the Most Fiber?

Updated October 15, 2026 ยท 5 min read

Whole grains keep the fiber-rich bran and germ that refining strips away. Here is how the common options compare.

Key takeaways

  • Bulgur and barley are among the highest-fiber grains.
  • "Multigrain" does not mean whole grain.
  • Look for "100% whole grain" or a whole grain as the first ingredient.
Grain (cooked)ServingFiber (approx.)
Bulgur1 cup8 g
Pearled barley1 cup6 g
Whole-wheat spaghetti1 cup6 g
Quinoa1 cup5 g
Buckwheat groats1 cup4.5 g
Oats1 cup4 g
Brown rice1 cup3.5 g
White rice1 cupunder 1 g

How to spot real whole-grain products

Simple ways to eat more

This article is for general education and is not medical advice. See our medical disclaimer.