Fiber
CautionDietary Fiber
Fiber is a type of carbohydrate that the body cannot digest, found in plant-based foods. Its FODMAP content varies depending on its source.
What is Fiber?
Fiber encompasses a range of carbohydrates that the human body cannot digest. It is primarily found in plant-based foods and is crucial for maintaining digestive health, regulating blood sugar levels, and aiding in weight management. There are two main types of fiber: soluble, which dissolves in water and can help lower glucose and cholesterol levels, and insoluble, which does not dissolve and aids in moving material through the digestive system. The FODMAP content of fiber can vary significantly depending on its source, with some fibers being low FODMAP and suitable for individuals following a low-FODMAP diet.
Also known as:
Unsure about an ingredient? Scan it instantly.
Try SpoonfulDiet Compatibility
The FODMAP content of fiber depends on the source from which it was derived.
Learn more →This ingredient is generally considered compatible with a Alphagal diet.
Learn more →This ingredient is generally considered compatible with a Dairy Free diet.
Learn more →This ingredient is generally considered compatible with a Gluten Free diet.
Learn more →This ingredient is generally considered compatible with a Vegan diet.
Learn more →This ingredient is generally considered compatible with a Vegetarian diet.
Learn more →Compatibility ratings are general guidelines and may vary by individual. Always consult a healthcare professional for personalized dietary advice.
Why People Avoid Fiber
People may avoid fiber due to digestive sensitivities or conditions such as irritable bowel syndrome (IBS), where certain types of fiber may exacerbate symptoms. High-FODMAP fibers can ferment in the gut, causing bloating, gas, and discomfort for some individuals. Therefore, those on a low-FODMAP diet need to be cautious about the type of fiber they consume, opting for fibers that are low in FODMAPs, such as oat fiber, rice fiber, and certain types of soluble fibers.
Potential Reactions
- Bloating
- Gas
- Abdominal pain
- Diarrhea
- Constipation
This information is for educational purposes only and should not be considered medical advice. Individual reactions can vary. Consult a healthcare professional if you have concerns about specific ingredients.
Spoonful flags ingredients that don't match your diet.
Get the AppFoods That Commonly Contain Fiber
Browse products that match your diet.
Explore ProductsFrequently Asked Questions
Your Personal Ingredient Scanner
Spoonful helps thousands of people with dietary restrictions shop safely. Scan barcodes, read labels, and find safe alternatives — all in one app.

Take the Guesswork Out of Grocery Shopping
Join thousands who use Spoonful to find foods that match their dietary needs.