Oat Bran
The fibre-rich outer layer of the oat, concentrated in beta-glucan compared with rolled oats.

Nutrition per 100 g
Standardised to 100 g of oat bran, dry for fair comparison. Typical serving: 20 g dry — 49 kcal per 20 g serving.
| Nutrient | Per 100 g | Per serving (20 g) | Per 100 kcal |
|---|---|---|---|
| Energy | 245 kcal | 49 kcal | 100 kcal |
| Protein | 17.5 g | 3.5 g | 7.1 g |
| Carbohydrate | 66 g | 13.2 g | 26.9 g |
| Fat | 7 g | 1.4 g | 2.9 g |
| Fibre | 15.5 g | 3.1 g | 6.3 g |
Figures are typical values and vary with variety, preparation and brand.
Micronutrients
Vitamins and minerals per 100 g of oat bran, with a typical serving and FDA Daily Value for adults.
| Nutrient | Per 100 g | Per serving (20 g) | % DV |
|---|---|---|---|
| Vitamins | |||
| Vitamin A | 0 µg | 0 µg | 0% |
| Vitamin C | 0 mg | 0 mg | 0% |
| Vitamin D | 0 µg | 0 µg | 0% |
| Vitamin E | 1 mg | 0.2 mg | 7% |
| Vitamin K | 3.2 µg | 0.64 µg | 3% |
| Thiamin | 1.2 mg | 0.24 mg | 100% |
| Riboflavin | 0.22 mg | 0.044 mg | 17% |
| Niacin | 0.93 mg | 0.19 mg | 6% |
| Vitamin B6 | 0.17 mg | 0.034 mg | 10% |
| Folate | 52 µg | 10.4 µg | 13% |
| Vitamin B12 | 0 µg | 0 µg | 0% |
| Pantothenic acid | 1.5 mg | 0.3 mg | 30% |
| Choline | 32.2 mg | 6.4 mg | 6% |
| Minerals | |||
| Calcium | 58 mg | 11.6 mg | 4% |
| Iron | 5.4 mg | 1.1 mg | 30% |
| Magnesium | 235 mg | 47 mg | 56% |
| Phosphorus | 734 mg | 147 mg | 59% |
| Potassium | 566 mg | 113 mg | 12% |
| Sodium | 4 mg | 0.8 mg | <1% |
| Zinc | 3.1 mg | 0.62 mg | 28% |
| Selenium | 45.2 µg | 9 µg | 82% |
| Copper | 0.4 mg | 0.08 mg | 44% |
| Manganese | 5.6 mg | 1.1 mg | 243% |
Source: USDA FoodData Central — Oat bran, raw
% DV uses FDA Daily Values for adults. Nutrients that USDA does not report for this entry are omitted. Values vary with variety, preparation and brand.
Why eat oat bran?
- A commonly eaten food that can sit in a balanced pattern when portions are honest.
- The fibre-rich outer layer of the oat, concentrated in beta-glucan compared with rolled oats.
How to include it
- Use in the usual way for this food, and keep an eye on the stated serving.
- Typical pairing ideas: Yogurt, Milk, Berries.
Things to consider
- Preparation and added fat, salt or sugar change the numbers more than the raw food does.
Educational content. This article is for general information and is not medical advice. Speak to a qualified health professional about your individual circumstances.
Related foods

Oats, dry
A whole grain with beta-glucan soluble fibre and a low cost per serving.
- kcal
- 380
- protein
- 13.4 g
- fibre
- 10 g
per 100 g · Typical serving: 50 g dry

Wheat Bran
The outer layer of the wheat kernel and one of the most concentrated fibre sources available.
- kcal
- 213
- protein
- 15.3 g
- fibre
- 42.7 g
per 100 g · Typical serving: 15 g
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