oats fibre
Oats and Fibre: What a Bowl of Porridge Adds
A simple look at fibre in oats, nutrition data per 100g and ways to make porridge more filling.
Reviewed 15 July 2026. Sources: NHS and USDA FoodData Central.
Quick answer
Oats are a useful wholegrain fibre source. The USDA-based data used by Nutrigate lists about 10.1g of fibre per 100g of dry oats, although a normal bowl uses less than 100g.
Nutrition data per 100g
USDA-based values used by Nutrigate for a generic food. Preparation and branded products can differ.
- Fibre
- 10.1g
- Protein
- 13.2g
- Magnesium
- 138mg
Why oats are a useful breakfast base
Oats are easy to keep in the cupboard, quick to cook and flexible enough for sweet or savoury meals. They provide carbohydrate, fibre and some protein, magnesium and iron.
The exact nutrition of your bowl depends on what you add. Milk, fruit, nuts and seeds each change the final picture in a useful way.
Make porridge more satisfying
Cook oats with milk or a fortified plant alternative, then add berries, a banana, grated apple or pear. Nuts and seeds can add texture and healthy fats, while yoghurt adds extra protein.
If you do not fancy porridge, oats work in overnight oats, baked oats, flapjacks and savoury oatcakes. Watch the sugar and salt in ready-made versions if you buy them regularly.
Use the portion that suits the meal
Dry oats are dense, so per-100g figures can look bigger than the amount on your breakfast spoon. Weighing a portion once can help you get a feel for what you usually use.
For a higher-fibre day, do not rely on oats alone. Bring in beans, wholemeal bread, vegetables, fruit and pulses across your other meals.
Questions people ask
Are oats high in fibre?
They are a good source of fibre, especially when compared with more refined breakfast options. The amount you get depends on your portion.
Are overnight oats as nutritious as cooked oats?
They can be. The key differences usually come from the milk, yoghurt, fruit and toppings you use.
Sources and notes
This guide is for general nutrition information. It does not diagnose a deficiency, treat a condition or replace personal medical advice.
- USDA FoodData Central
Food composition data and food search
- NHS: How to get more fibre into your diet
Fibre sources and practical guidance