Wheat bran
Wheat bran


Wheat bran is the outer layers of the wheat grain kernel. It's separated from the inner layers during milling. It's rich in soluble and insoluble fiber.

Wheat bran has laxative effects that can increase stool volume and bowel frequency. It also contains proteins, fats, carbohydrates, minerals, vitamins, and antioxidants.

People use wheat bran for constipation, hemorrhoids, and irritable bowel syndrome (IBS). It is also used for colon cancer, diabetes, high cholesterol, and many other conditions, but there is no good scientific evidence to support most of these uses.

Wheat is considered a major food allergen in the US. Wheat contents, including wheat bran, must be labeled on packaged foods and supplement products.
When taken by mouth: Wheat bran is likely safe when used in doses up to 30 grams daily for up to 3 months. It's usually well-tolerated. Side effects might include gas and stomach discomfort.

Special Precautions & Warnings:

Pregnancy and breast-feeding: Wheat bran is likely safe when taken by mouth during pregnancy and breast-feeding.

Children: Wheat bran is likely safe when taken by mouth in doses up to 10 grams daily. It has been used safely for up to 2 years.


NatMed Pro rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, Ineffective, and Insufficient Evidence to Rate.
Likely effective Effectiveness definitions
Possibly effective Effectiveness definitions
  • Constipation. Taking wheat bran by mouth seems to help restore normal bowel function in people with mild constipation.
  • Hemorrhoids. Taking wheat bran by mouth might help reduce the risk of getting hemorrhoids in some people.
  • A long-term disorder of the large intestine that causes stomach pain (irritable bowel syndrome or IBS). Taking wheat bran by mouth seems to improve bowel function in some people with IBS.
Likely ineffective Effectiveness definitions
Possibly ineffective Effectiveness definitions
  • Colon cancer, rectal cancer. Taking wheat bran by mouth doesn't seem to reduce the risk for colon or rectal cancer.
There is interest in using wheat bran for a number of other purposes, but there isn't enough reliable information to say whether it might be helpful.
Insufficient evidence Effectiveness definitions

Dosing & administration

Wheat bran is a source of dietary fiber. Recommendations for dietary fiber intake vary by age.

As medicine, wheat bran has most often been used by adults in doses of 20-30 grams by mouth daily. Speak with a healthcare provider to find out what dose might be best for a specific condition.

Interactions with pharmaceuticals

It is not known if Wheat Bran interacts with any medicines. Before taking Wheat Bran, talk with your healthcare professional if you take any medications.

Interactions with herbs & supplements

There are no known interactions with herbs and supplements.

Interactions with foods

Wheat bran contains high amounts of a chemical called phytate. Phytate might affect how the body absorbs some nutrients from foods, including iron, zinc, and calcium. But the phytate in wheat bran might be broken down in the stomach, so it's not clear if this is a big concern.
Menopause 2 Formula
Practitioner product
Collagen Activ
Practitioner product
vital.ly has licensed monographs from TRC Healthcare.
This monograph was last reviewed on 16/11/2023 11:00:00 and last updated on 04/11/2020 00:35:14. Monographs are reviewed and/or updated multiple times per month and at least once per year.
Natural Medicines disclaims any responsibility related to medical consequences of using any medical product. Effort is made to ensure that the information contained in this monograph is accurate at the time it was published. Consumers and medical professionals who consult this monograph are cautioned that any medical or product related decision is the sole responsibility of the consumer and/or the health care professional. A legal License Agreement sets limitations on downloading, storing, or printing content from this Database. No reproduction of this monograph or any content from this Database is permitted without written permission from the publisher. It is unlawful to download, store, or distribute content from this site.