OATS: Overview, Uses, Side Effects, Precautions, Interactions, Dosing and Reviews (2024)

Overview

Oat (Avena sativa) is a type of cereal grain. People often eat the plant's whole seeds (oats), outer seed layers (oat bran), and leaves and stems (oat straw).

Oats might reduce cholesterol and blood sugar levels, and help control appetite by making you feel full. Oat bran might work by keeping the gut from absorbing substances that can lead to heart disease, high cholesterol, and diabetes. Oats seem to reduce swelling when applied to the skin.

Oat bran and whole oats are used for heart disease, high cholesterol, and diabetes. They are also used for high blood pressure, cancer, dry skin, and many other conditions, but there is no good scientific evidence to support these other uses.

Uses & Effectiveness ?

Likely Effective for

  • Heart disease. Oats contain fiber. Eating a diet high in fiber, such as 3.6 grams of oats daily, reduces the risk for heart disease.
  • High cholesterol. Eating oats, oat bran, and other soluble fibers can somewhat reduce total and low-density lipoprotein (LDL or "bad") cholesterol when consumed as part of a diet low in saturated fat.

Possibly Effective for

  • Diabetes. Eating a diet rich in whole grains, including oats and oat bran, might help prevent diabetes. It might also help improve blood sugar control and lower cholesterol levels in people with diabetes.
  • Stomach cancer. Eating high-fiber foods, such as oats and oat bran, seems to lower the risk of stomach cancer.

Possibly Ineffective for

  • Colon cancer, rectal cancer. Regularly eating oat bran or oats doesn't seem to lower the risk of colon or rectal cancer.

There is interest in using oats for a number of other purposes, but there isn't enough reliable information to say whether it might be helpful.

Side Effects

When taken by mouth: Oat bran and whole oats are likely safe for most people when eaten in foods. Oats can cause gas and bloating. To minimize side effects, start with a low dose and increase slowly to the desired amount. Your body will get used to oat bran and the side effects will likely go away.

When applied to the skin: Lotion containing oat extract is possibly safe to use on the skin. Putting oat-containing products on the skin can cause some people to have a rash.

Special Precautions and Warnings

When taken by mouth: Oat bran and whole oats are likely safe for most people when eaten in foods. Oats can cause gas and bloating. To minimize side effects, start with a low dose and increase slowly to the desired amount. Your body will get used to oat bran and the side effects will likely go away.

When applied to the skin: Lotion containing oat extract is possibly safe to use on the skin. Putting oat-containing products on the skin can cause some people to have a rash. Pregnancy and breast-feeding: Oat bran and whole oats are likely safe when eaten in foods during pregnancy and breast-feeding.

Celiac disease: People with celiac disease must not eat gluten. Many people with celiac disease are told to avoid eating oats because they might be contaminated with wheat, rye, or barley, which contain gluten. But in people who haven't had any symptoms for at least 6 months, eating moderate amounts of pure, non-contaminated oats seems to be safe.

Disorders of the digestive tract including the esophagus, stomach, and intestines: Avoid eating oat products. Digestive problems that could extend the length of time it takes for your food to be digested could allow oats to block your intestine.

Interactions ?

    Moderate Interaction

    Be cautious with this combination

  • Insulin interacts with OATS

    Oats might reduce the amount of insulin needed for blood sugar control. Taking oats along with insulin might cause your blood sugar to drop too low. Monitor your blood sugar closely. The dose of insulin might need to be changed.

  • Medications for diabetes (Antidiabetes drugs) interacts with OATS

    Oats might lower blood sugar levels. Taking oats along with diabetes medications might cause blood sugar to drop too low. Monitor your blood sugar closely.

Dosing

Oats are commonly eaten in foods. For health benefits, adults should eat whole oats providing at least 3.6 grams of soluble fiber daily. Speak with a healthcare provider to find out what dose might be best for a specific condition.

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CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circ*mstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

This copyrighted material is provided by Natural Medicines Comprehensive Database Consumer Version. Information from this source is evidence-based and objective, and without commercial influence. For professional medical information on natural medicines, see Natural Medicines Comprehensive Database Professional Version.
© Therapeutic Research Faculty 2020.

OATS: Overview, Uses, Side Effects, Precautions, Interactions, Dosing and Reviews (2024)

FAQs

What are the precautions for oats? ›

Special Precautions and Warnings

Oats can cause gas and bloating. To minimize side effects, start with a low dose and increase slowly to the desired amount. Your body will get used to oat bran and the side effects will likely go away.

Are there any negative effects of eating oatmeal everyday? ›

What are side-effects of oats? Oats are a good source of carbohydrates and overeating may lead to an increase in your weight. As it is bland in nature, overconsuming oats may lead to an increase in sugar intake. Opting for an oats-only diet may deprive your body of getting nourishment from other healthy food sources.

What medications does oat bran interfere with? ›

Oat bran may decrease absorption of medications. There are reports of decreased absorption of statins and iron with oat bran ingestion.

What happens to your stomach if you eat oatmeal every day? ›

The Bottom Line

Oatmeal's high fiber content and prebiotic qualities may benefit your body in more ways than one. Making oatmeal a regular part of your menu can potentially lower your disease risk, help your gut health thrive, make bowel movements easier and keep you feeling fuller for longer.

What to avoid in oatmeal? ›

Some unhealthy toppings for oatmeal include:
  • Sugary syrups like maple syrup or honey.
  • Candied or dried fruit with added sugar.
  • Chocolate chips or other candy.
  • Sweetened whipped cream or heavy cream.
  • Granola or other high-sugar cereals.
  • Sweetened coconut flakes.
  • Artificial sweeteners or sugar substitutes.
Feb 13, 2023

What are the major diseases of oats? ›

Major leaf diseases of oats are stem rust, leaf rust, barley yellow dwarf virus and septoria avenae blotch; their severity changes with seasons.

Why is oatmeal no longer good for you? ›

Blood sugar spikes

Oats, despite being a complex carbohydrate, can cause rapid spikes in blood sugar levels, especially when consumed in large quantities. This can be a concern for individuals with diabetes or those aiming to regulate their blood sugar levels.

Why do cardiologist say not to eat oatmeal? ›

According to Cardiologist, Dr Wolfson, oats hold no nutritional value and contain anti-nutrient properties. He says, "I never recommend eating oatmeal, certainly not every day as so many people do."

Who Cannot eat oatmeal? ›

Sensitivity or allergy to oats is uncommon. People with these conditions have an immune system reaction to avenin, a protein found in oats. People who are sensitive to gluten, such as those with celiac disease, may also react adversely to oats due to cross-contamination of products.

What is the healthiest oatmeal? ›

Steel-cut oats, also called Irish oatmeal, are the whole oat kernel that has been cut into two or three pieces using steel disks. This type of oats contains the highest amount of fiber, as it is least processed. Steel-cut oats take a little longer to cook, and result in a creamy and chewy porridge.

Do oats spike blood sugar? ›

For many people with diabetes, consuming oatmeal doesn't have a lot of cons. Eating oatmeal can spike blood sugar levels if you choose instant oatmeal with added sugar or consume too much at once. Oatmeal may negatively affect health in those with gastroparesis, a health condition that causes delayed gastric emptying.

Is oatmeal high in uric acid? ›

Oatmeal can be part of a balanced diet if you have gout. It is not considered a high purine food, so it can be incorporated into a low purine diet. Gout is a type of arthritis that causes pain and inflammation in the joints. It's caused by high levels of uric acid, also called urate.

Is there a downside to eating oatmeal? ›

Oats contain phytic acid, an antinutrient that is known to interfere with the absorption of the vitamins and minerals from oats into your body. So, you need to include a variety of fruits and vegetables in your diet to make up for the possible nutritional loss.

Who should not eat oat bran? ›

If you have IBS, you may find that bran is not something you tolerate well. Bran has a lot of insoluble fiber, which can make IBS symptoms worse. You should still try to get fiber in your diet, but you may find that focusing on sources of soluble fiber or using fiber supplements is a better option for you.

What does oatmeal do to your bowels? ›

Oatmeal is a good source of fiber, particularly soluble fiber. As a result, it helps add moisture to the stool, which makes it softer and easier to pass. Other high-fiber foods like fruits, nuts and seeds pair well with oatmeal and could increase the meal's or snack's constipation-relieving benefits.

Do oats cause gut inflammation? ›

Their results have outlined that oats are a valuable source of nutrients without gut inflammation, but other aspects, such as noninflammatory associated symptoms and the benefits of modulating the gut microbiome, have not been studied.

Is oatmeal good or bad for belly fat? ›

While oatmeal can't target specific areas like belly fat for weight loss, its high content of fiber and complex carbohydrates may keep you full for longer. This might support overall weight loss.

Who should not take oats? ›

Those who are celiac or gluten intolerant are not allowed to consume oats in any shape or form. Oats lack this crucial protein fraction. But it must be taken into account that it is extremely complicated to prevent oats from being contaminated with other cereals during the manufacturing process.

How do you make oats safe to eat? ›

Though raw oats are safe to eat, it's recommended to soak them in water, juice, milk, or a nondairy milk alternative to avoid some unwanted side effects. Eating dry raw oats could lead them to build up in your stomach or intestines, resulting in indigestion or constipation.

Is it safe to eat uncooked oats? ›

Once oats have been harvested, they go through a few processing steps before they hit the cereal aisle. “Raw oats are often pre-cleaned, hulled and are made safe for immediate consumption during the processing process,” explains Lauren Manaker, M.S., RDN, LD, a Charleston-based registered dietitian.

What are the bacterial diseases of oats? ›

Bacterial diseases
Bacterial blight (halo blight)Pseudomonas coronafaciens pv. coronafaciens
Bacterial stripe blightPseudomonas coronafaciens pv. striafaciens
Black chaff and bacterial streak (stripe)Xanthom*onas campestris pv. translucens

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