Oat Bran Nutrition Facts and Health Benefits

Oat bran is the outer layer of the oat husk and an excellent source of fiber, vitamins, and minerals. Read on to find out all the health benefits of including oat bran in your diet.
Jyothi Shenoy, MD, MBA

Written by Jyothi Shenoy, MD, MBA. Updated on December 15, 2022.

Oat bran is the outer layer of the oat husk. In other words, it is the part that separates the grain from the inedible husk and is, therefore, an incredible source of fiber, vitamins, and minerals.

With only 100 grams, it can meet more than half of the daily dietary fiber requirement. It is also an excellent source of protein.

It has rich vitamin content, especially vitamins B1 and B5. Again, with the same portion, it can meet all of the daily vitamin B1 needs.

Oat bran is an incredible source of manganese and contains enough manganese to meet 2.5 times the daily requirement in the same serving.

In addition, with its high selenium, magnesium, phosphorus, iron, and zinc content, it is the grain with the richest mineral content compared to many grain products.

We have compiled for you the other benefits of this nutrient, which is effective in lowering high cholesterol, improving the digestive system, and relieving the symptoms of IBS.

If you are worried about vitamin B12, you can try consuming it with soy milk enriched with this vitamin.

You can easily add oat bran to your diet by substituting oats in your breakfast oatmeal or make muffins, bread and other baked dishes with it.

Oat bran Quick Nutrition Facts

Here's a quick nutrition overview for 3.5 ounces (100 grams) of oat bran:

  • Energy: 246 calories
  • Carbs: 66.2 grams
  • Sugar: 1.45 grams
  • Fiber: 15.4 grams
  • Protein: 17.3 grams
  • Fat: 7.03 grams
  • Saturated Fat: 1.33 grams

Jump to a section where you can learn more about oat bran nutrition value, including macronutrients, vitamins, minerals, protein quality, and more.

Health Benefits of Oat Bran

Thanks to a significant amount of specific vitamins and minerals, oat bran could provide several health benefits.

Continue reading to discover the potential benefits of consuming oat bran.

They May Boost Testosterone Levels

Zinc can support the secretion of reproductive enzymes, especially testosterone, thus improving sperm count and sperm motility in men.

It can promote muscle growth, act as an antioxidant, reduce inflammation, and protect against chronic conditions such as cancer, heart attacks, and diabetes.

Zinc is one of the important minerals involved in the growth and development of organs and tissues.

It is also needed for maintaining normal immune functions. Zinc also helps in the production of the active form of vitamin A and the transportation of this nutrient around the body.

Zinc is necessary for the activities of more than 300 enzymes, which take part in the metabolic processes, digestion, and nerve function.

It is fundamental to DNA synthesis, skin health, and protein production.

Zinc is known for its role in the maintenance of normal blood sugar levels and insulin secretion.

These functions of zinc can help in the effective control of diabetes and reduce the risk of related complications.

They May Improve Glycemic Control

The primary function of phosphorus is linked to the formation of teeth and bones.

It also plays a role in regulating the utilization of carbohydrates and fats in the body, thus ensuring a steady supply of fuel to the cells.

It can improve glycemic control in patients with diabetes and reduce the risk of complications.

Phosphorus is also needed for the synthesis of proteins, which form the building blocks of the tissues of the body.

This effect of phosphorus can support the growth and development of the body’s organs.

It can also improve the maintenance and repair of the organs by accelerating the healing of the tissues damaged due to free radicals, inflammation, toxic exposure, and age-related degenerative changes.

This can help sustain the normal activities of the body and improve general health.

Phosphorus also helps to remove unwanted waste material from the body, thus reducing the toxic overload and cleansing the blood. This can restore healthy bodily functions and reduce the risk of several diseases.

They May Help Relieve Symptoms of Osteoarthritis and IBS

Manganese can reduce inflammation and hence, can be useful as a potential therapeutic agent for the management of inflammatory disorders such as osteoarthritis and inflammatory bowel disease.

Manganese is a vital nutrient that helps in the formation of connective tissue, blood clotting factors, bones, and reproductive hormones.

It also supports the metabolism of fat and carbohydrate and enhances calcium absorption. It can help with blood sugar regulation, thereby improving glycemic control in patients with diabetes.

Manganese is also needed for normal nerve and brain function. When combined with other nutrients like calcium and zinc, manganese can support the bone formation processes and improve bone mineral density.

This is especially important for postmenopausal women and older men who are at a higher risk of osteoporosis due to the decline in bone mineral density.

Manganese is an integral part of the body’s antioxidant mechanisms. It helps in the synthesis of an enzyme called superoxide dismutase, which acts as a powerful antioxidant in the body and prevents oxidative stress linked to the high risk of cancer, autoimmune disorders, and diabetes.

They May Improve Your Sleep

Magnesium plays a key role in improving the duration and quality of sleep.

It maintains the chemical balance in the nervous system and creates a sense of calmness and relaxation that is favorable for getting sound sleep.

Magnesium can also regulate the secretion of neurotransmitters in the brain, thus stimulating the production of the sleep hormone called melatonin. It can elevate the melatonin levels in the nervous system, thus reducing the time needed to fall asleep.

This mineral also has the ability to stimulate the normal activities of the nervous system and reduce the risk of mood disorders and depression.

Magnesium is important for maintaining bone health and improving the utilization of glucose for energy. It also supports immune function and regulates blood pressure and lung functions.

It can fight inflammation and improve digestion, thereby relieving constipation. It can prevent the risk of diseases linked to chronic inflammation, such as diabetes and cancer, and improve general health.

May Improve the Carbohydrate Metabolism

Copper is needed for regulating carbohydrate metabolism. It can help to convert sugar into a usable form of energy, thus ensuring the body receives a steady supply of fuel to perform its critical functions.

It is needed by the body for several functions, including the formation of red blood cells.

Copper can also support nerve functions and improve the transmission of signals between different parts of the body.

It can keep the nerve cells healthy and reduce the risk of neurodegenerative diseases such as dementia and Alzheimer’s disease.

Copper is also needed for the optimal functioning of the nervous system. It can improve mood by regulating the balance of hormones in the brain.

It can support the defense mechanisms of the immune system involved in infection prevention.

Copper also helps in the formation of collagen, a protein that makes up our skin, bones, and other tissues. It protects the cells from damage and improves the absorption of iron in the body, thereby increasing the availability of this vital nutrient.

May Support Energy Production

Iron helps to support energy production at the cellular level. It can ensure the body receives a steady supply of fuel, thus allowing you to feel fresh and energetic and maintain focus.

It is an important mineral involved in several bodily functions, including the supply of energy to the cells and the transport of oxygen to the tissues through the bloodstream.

Our body uses this mineral to make hemoglobin, a form of protein in red blood cells, which transports oxygen from the lungs to all the organs and tissues of the body.

It also helps in the formation of myoglobin, another protein that carries oxygen to the muscles.

The body also needs iron to secrete some hormones. It is needed for the normal growth and development of the body.

It also helps the immune system function more effectively, thus preventing infections due to bacteria, viruses, and fungi.

It can also support digestive processes, thus improving the absorption of nutrients in the gut.

May Prevent the Symptoms of Allergic Diseases

Selenium can also regulate the activities of the immune cells against allergens and irritants and, thus, prevent the symptoms of allergic diseases like asthma, dermatitis, and rhinitis.

It can boost immune functions and reduce the risk of infections.

Selenium also plays a role in restoring healthy immune functions, thus preventing the development and progress of autoimmune disorders that occur when the immune cells fail to recognize the body’s tissues as their own and attack them.

It can improve the health of the skin, hair, and nail. It can support the healing of skin lesions and promote hair growth.

Selenium can also support a healthy thyroid and prevent the occurrence of thyroid dysfunctions.

It may help to lower the risk of some forms of cancer.

This benefit of selenium could be attributed to its ability to reduce oxidative stress and DNA damage, boost the immune system, and destroy cancer cells.

Oat bran Nutrition Facts

Continue reading to find out the following oat bran nutrition information:

  • Macronutrients
  • Vitamin Content
  • Mineral Content
  • Amino Acid Profile
  • Fat Breakdown
  • Carbohydrate Breakdown

Macronutrients

Macronutrients, often called macros, are most commonly used term when it comes to eating a healthy diet or losing weight. There are three types of macronutrients: carbohydrates, proteins, and fats.

Macronutrients provide energy to your body and allows it to function properly. The following table contains the information on oat bran macronutrients, while reading further will give you a better understanding on each of these macronutrients.

Carbohydrate22% DV66.2 g
Protein35% DV17.3 g
Fat9% DV7.03 g

Vitamin Content

Oat bran are excellent source of Vitamin B1 (Thiamine), and Vitamin B5 (Pantothenic acid).

They also contain a good amount of Vitamin B2 (Riboflavin), Vitamin B6 (Pyroxidine), and Vitamin B9 (Folate) and some Vitamin B3 (Niacin), and Vitamin E.

Here's the full oat bran vitamin content per 100g:

Vitamin A0% DV0 IU
Vitamin C0% DV0 mg
Vitamin D0% DV0 µg
Vitamin B1 (Thiamine)98% DV1.17 mg
Vitamin B2 (Riboflavin)17% DV0.22 mg
Vitamin B3 (Niacin)6% DV0.934 mg
Vitamin B5 (Pantothenic acid)30% DV1.49 mg
Vitamin B6 (Pyroxidine)10% DV0.165 mg
Vitamin B9 (Folate)13% DV52 µg
Vitamin B12 (Cobalamin)0% DV0 µg
Vitamin E7% DV1.01 mg
Vitamin K3% DV3.2 µg

Mineral Content

Oat bran are excellent source of Copper, Iron, Magnesium, Manganese, Phosphorus, Selenium, and Zinc.

They also contain a good amount of Potassium and some Calcium.

Here's the full oat bran mineral content per 100g:

Calcium4% DV58 mg
Copper45% DV0.403 mg
Fluoride0% DV0 mg
Iron30% DV5.41 mg
Magnesium56% DV235 mg
Manganese245% DV5.63 mg
Phosphorus59% DV734 mg
Potassium12% DV566 mg
Selenium82% DV45.2 μg
Sodium0% DV4 mg
Zinc28% DV3.11 mg

Protein and Amino Acid Profile

Oat bran contain 17.3 g of protein per 100 g, or in other words, oat bran provide 7.03 g of protein per 100 kcal.

Similarly to most other plant proteins, protein in oat bran contain all nine essential amino acids, however, they are a little bit low in lysine.

Histidine OK55% DV0.41 g
Isoleucine OK45% DV0.668 g
Leucine OK46% DV1.37 g
Lysine Low34% DV0.76 g
Methionine OK30% DV0.335 g
Phenylalanine OK61% DV0.908 g
Threonine OK44% DV0.502 g
Tryptophan OK112% DV0.335 g
Valine OK49% DV0.964 g

Fat Breakdown

Around 26% of the calories in oat bran are from fat. Oat bran have 7.03 grams or 9% of recommended daily values per 100g.

Saturated fat and trans fat can increase cholesterol levels and increase the heart disease risk.

Oat bran fat content mostly consists of healthy unsaturated fats.

According to FDA, dietary cholesterol should be kept below 300 mg per day. Luckily, oat bran is cholesterol free.

Oat bran do not contain trans fats. Trans fats should be kept as low as possible.

Total Fat9% DV7.03 g
Saturated Fat7% DV1.33 g
Monounsaturated Fatdo not have a %DV2.38 g
Polyunsaturated Fatdo not have a %DV2.77 g
Trans Fatsdo not have a %DV0 g
Cholesterol0% DV0 mg

Carbohydrate Breakdown

108% of the calories in oat bran come from carbohydrates.

Carbs in oat bran are mostly starch (75%), followed by fiber and sugars.

When it comes to sugars, oat bran are relatively low in sugar, containing grams of sugar per 100g.

Oat bran are a great source of fiber, and considered as a "high fiber food", as the contain 14.5 grams of fiber per serving.

According to U.S. government's National Labeling and Education Act (NLEA), food must contain 5 grams or more of dietary fiber per serving to be labeled as high fiber food.

Total amount of fiber in 100g of oat bran is 15.4.

Total Carbohydrate24% DV66.2 g
Dietary Fiber55% DV15.4 g
Sugars3% DV1.45 g

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Sources

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