Nine Health Benefits of Eating Oats and Oatmeal

March 8, 2024
Nine Health Benefits of Eating Oats and Oatmeal

1. OATS ARE INCREDIBLY NUTRITIOUS

Oats are rich in carbs and fibre, but also higher in protein and fat than most other grains. They are very high in many vitamins and minerals.

The nutrient composition of oats is well-balanced. They are a good source of carbs and fibre, including the powerful fibre beta-glucan (1). 

They are also a good source of high quality protein, with a good balance of essential amino acids (2).

Oats are loaded with important vitamins, minerals, and antioxidant plant compounds. Half a cup (78 grams) of dry oats contains (3): 

  • Manganese: 63.91% of the daily value (DV)
  • Phosphorus: 13.3% of the DV
  • Magnesium: 13.3% of the DV
  • Copper: 17.6% of the DV
  • Iron: 9.4% of the DV
  • Zinc: 13.4% of the DV
  • Folate: 3.24% of the DV
  • Vitamin B1 (thiamine): 15.5% of the DV
  • Vitamin B5 (pantothenic acid): 9.07% of the DV
  • smaller amounts of calcium, potassium, vitamin B6 (pyridoxine), and vitamin B3 (niacin)

Oats have 51 grams of carbs, 13 grams of protein, 5 grams of fat, and 8 grams of fibre in 1 cup. This same serving has only 303 calories. Making oats one of the most nutrient-dense foods you can eat.

2. WHOLE OATS ARE RICH IN ANTIOXIDANTS, EXCLUSIVELY INCLUDING AVENANTHRAMIDES

Oats contain many powerful antioxidants, including avenanthramides. These compounds may help reduce blood pressure and provide other benefits.

Whole oats are high in antioxidants and beneficial plant compounds called polyphenols. Most notable is a unique group of antioxidants called avenanthramides, which are almost solely found in oats (4).

Both old and newer research has found that avenanthramides may help lower blood pressure levels by increasing the production of nitric oxide. This gas molecule helps dilate (widen) blood vessels and leads to better blood flow (5)(6)(7)(8).

In addition, avenanthramides have anti-inflammatory and anti-itching effects (7)(9)(10).

3. OATS CONTAIN A POWERFUL, SOLUBLE FIBRE CALLED BETA-GLUCAN

Oats are high in the soluble fibre beta-glucan, which has numerous benefits. It helps reduce cholesterol and blood sugar levels, promotes healthy gut bacteria, and increases feelings of fullness.

Oats contain large amounts of beta-glucan, a type of soluble fibre. Beta-glucan partially dissolves in water and forms a thick, gel-like solution in your gut.

The health benefits of beta-glucan fibre include: 

  • reduced LDL and total cholesterol levels (11)
  • reduced blood sugar and insulin response (12)
  • increased feeling of fullness (13)
  • increased growth of good bacteria in the digestive tract (14)

4. OATS CAN LOWER CHOLESTEROL LEVELS AND PROTECT LDL CHOLESTEROL FROM DAMAGE

Oats may lower the risk of heart disease by reducing both total and LDL (bad) cholesterol, as well as by protecting LDL from oxidation.

Heart disease is the leading cause of death globally. One major risk factor is high blood cholesterol. 

Many studies have shown that the beta-glucan fibre in oats is effective at reducing both total and LDL (bad) cholesterol levels (15).

Beta-glucan may increase the release of cholesterol-rich bile, which reduces the circulating levels of cholesterol in your blood.

Oats may also protect LDL (bad) cholesterol from oxidation. 

Oxidation of LDL (bad) cholesterol occurs when it reacts with free radicals. This is another crucial step in the progression of heart disease. It produces inflammation in arteries, damages tissues, and can raise the risk of heart attacks and strokes. 

5. OATS CAN IMPROVE BLOOD SUGAR CONTROL

Due to the soluble fibre beta-glucan, oats may improve insulin sensitivity and help lower blood sugar levels.

Type 2 diabetes is a common health condition, characterized by significantly elevated blood sugars. It usually results from decreased sensitivity to the hormone insulin.

Oats may help lower blood sugar levels, especially in people with overweight or who have type 2 diabetes. The beta-glucan in both oats and barley may also improve insulin sensitivity (16)(17). 

However, a randomized clinical trial in 2016 saw no improvement in insulin sensitivity, so further research is needed (18).

These effects are mainly attributed to beta-glucan’s ability to form a thick gel that delays the emptying of the stomach and absorption of glucose into the blood (16).

6. OATMEAL IS VERY FILLING AND MAY HELP YOU LOSE WEIGHT

Oatmeal may help you lose weight by making you feel more full. It does this by slowing down the emptying of the stomach and increasing the production of the satiety hormone PYY.

Not only is oatmeal (porridge) a delicious breakfast food, it’s also very filling (13). 

Eating filling foods may help you eat fewer calories and lose weight.

By delaying the time it takes your stomach to empty of food, the beta-glucan in oatmeal may increase your feeling of fullness (19). 

Beta-glucan may also promote the release of peptide YY (PYY), a hormone produced in the gut in response to eating. This satiety hormone has been shown to lead to reduced calorie intake and may decrease your risk of obesity (20)(21). 

7. FINELY GROUND OATS MAY HELP WITH SKIN CARE

Colloidal oatmeal (finely ground oats) has long been used to help treat dry and itchy skin. It may help relieve symptoms of various skin conditions, including eczema.

It’s no coincidence that oats can be found in numerous skin care products. Makers of these products often label finely ground oats as Colloidal Oatmeal.

The FDA approved colloidal oatmeal as a skin-protective substance back in 2003. But in fact, oats have a long history of use in the treatment of itch and irritation in various skin conditions (22).

For example, oat-based skin products may improve uncomfortable symptoms of eczema (23). 

Note that skin care benefits pertain only to oats applied to the skin, not those that are eaten.

8. OATS MAY DECREASE THE RISK OF CHILDHOOD ASTHMA

Some research suggests that oats may help prevent asthma in children when fed to young Infants.

Asthma is the most common chronic condition in kids (24).

It’s an inflammatory disorder of the airways — the tubes that carry air to and from a person’s lungs.

Although not all children have the same symptoms, many experience recurrent coughing, wheezing, and shortness of breath.

Older research indicates that early introduction of oats, for example, may actually protect children from developing asthma (25)(26).

One study reports that feeding oats to infants before they are 6 months old is associated with a decreased risk of childhood asthma (27

9. OATS MAY RELIEVE CONSTIPATION

Studies indicate that oat bran can help reduce constipation in older adults, significantly reducing the need to use laxatives.

People of all ages and populations experience constipation. This refers to infrequent, irregular bowel movements that are difficult to pass. 

Constipation affects nearly 16 out of 100 adults and about 33 out of 100 adults who are ages 60 and over (28).

Studies indicate that oat bran, the fibre-rich outer layer of the grain, may help relieve constipation in older adults (29)(30).

One trial found that well-being improved for 30 older adults who consumed a soup or dessert containing oat bran daily for 12 weeks (31).

What’s more, 59% of those people were able to stop using laxatives after the 3-month study, while overall laxative use increased by 8% in the control group.

Oat bran was also shown to decrease gastrointestinal symptoms and aid digestion in people living with ulcerative colitis (32).

However, while the soluble fibre in oats is generally effective against constipation, it has been found to be less effective against opioid-induced constipation, since it doesn’t affect the movement of the colon that the drugs may suppress (33).

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