Health

Eating oatmeal for two days has unexpected impact on heart health, study suggests

Published

1 week ago

February 18, 2026

Eating oatmeal for two days has unexpected impact on heart health, study suggests

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Eating oats for just a short period of time could have a profound impact on cholesterol levels, according to a recent study.

Researchers from the University of Bonn in Germany conducted a trial in which adults consumed a calorie-reduced diet of almost exclusively oatmeal for two days.

All participants suffered from a metabolic syndrome associated with a risk of diabetes, including a combination of high body weight, high blood pressure, elevated blood glucose or elevated blood lipid levels, according to a university press release.

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The 32 participants ate oatmeal, previously boiled in water, three times a day, for a total of 300 grams. They were only permitted to add fruits or vegetables to their meals and consumed around half of their normal caloric intake.

A control group was put on a calorie-reduced diet that did not include oats. Although both groups benefited, the cholesterol levels of those on the oat diet “improved significantly.” After six weeks, this effect “remained stable.”

A new study found that eating oats for two days reduced bad cholesterol. (iStock)

Study author Marie-Christine Simon, junior professor at the Institute of Nutritional and Food Science at the University of Bonn, shared in a statement that the level of LDL, or “bad” cholesterol, among the oatmeal-eating group was reduced by 10%.

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“That is a substantial reduction, although not entirely comparable to the effect of modern medications,” Simon said. “They also lost two kilos in weight on average, and their blood pressure fell slightly.”

The authors concluded that the diet influenced microorganisms in the gut, leading to the positive reaction. The results were published in the journal Nature Communications.

Oats significantly reduced cholesterol levels, although not as much as modern medicine. (iStock)

Simon concluded that a short-term oat-based diet at regular intervals “could be a well-tolerated way to keep the cholesterol level within the normal range and prevent diabetes.”

“As a next step, it can now be clarified whether an intensive oat-based diet repeated every six weeks actually has a permanently preventative effect,” she said.

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Certified holistic nutritionist Robin DeCicco, who was not involved in the study, said the findings “make sense” because oats have been known to potentially lower LDL cholesterol.

Oats contain prebiotic fiber that feeds beneficial gut bacteria. When those bacteria ferment the fiber, they produce compounds that support digestive health, according to the expert.

“The more beneficial gut bacteria you have in your stomach, in your environment, the more that can reduce or inhibit the production of LDL bad cholesterol,” New York-based DeCicco told Fox News Digital.

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Oats are also a whole grain that is naturally low in saturated fat and rich in fiber and provides a good amount of plant-based protein.

“All those things are good for a heart-healthy, cholesterol-lowering diet,” DeCicco noted.

Oats are a whole grain that is naturally low in saturated fat and rich in fiber and provides a good amount of plant-based protein, all of which are good for heart health. (iStock)

DeCicco did warn that those who are diabetic or prediabetic should “be careful” when eating oats.

“While oats can lower cholesterol, they are an overly high-carbohydrate food,” she said. “A recommendation for anyone who’s watching their blood sugar, and especially who’s diabetic, is to eat foods that are lower in starch and higher in protein and fiber, [and to get] their carbohydrates more from vegetables and nuts.”

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Megan Wroe, registered dietitian at the Wellness Center at Providence St. Jude Medical Center in Orange County, California, agreed that oat consumption “does seem to lower cholesterol levels for all studied populations, with the greatest impact shown in those with elevated levels.”

“There are no significant risks, but some people may experience cramping or indigestion if they have not previously eaten much fiber and suddenly start eating oats every day,” Wroe, who also was not involved in the study, told Fox News Digital. “Also, those requiring a gluten-free diet will want to ensure that the oats they eat are certified gluten-free.”

The nutritionist also shared the concern that oatmeal is commonly made with water or milk and eaten with added sugar and fruit, which makes it a “potentially very high-glycemic meal.”

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“Knowing this, my recommendation is to eat oats as often as you like, choosing steel-cut or rolled oats, using fruit for sweetness or a low-glycemic sweetener if needed, such as monk fruit,” she advised.

Wroe also suggests finding a way to add protein to balance out the carbohydrates.

“This can be done by adding chia or flax seeds to the oats, mixing in protein powder or topping with Greek yogurt to serve,” she said.

Angelica Stabile is a lifestyle reporter for Fox News Digital.

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Health

Common nighttime noise exposure may trigger heart problems, study suggests

Published

2 hours ago

February 28, 2026

Press Room

Common nighttime noise exposure may trigger heart problems, study suggests

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Living near heavy traffic could negatively impact your heart health.

A European study, published in the journal Environmental Research, found that exposure to nighttime road traffic noise is linked to changes in the blood, leading to worsened cholesterol and cardiovascular risks.

The researchers considered data from the U.K. Biobank, Rotterdam Study, and Northern Finland Birth Cohort 1966, including more than 272,000 adults over the age of 30, according to a press release.

Nighttime road noise exposure was estimated at all participants’ homes based on national noise maps. Researchers also took blood samples to measure the participants’ metabolic biomarkers for disease, then mapped the link between nightly noise levels and existence of biomarkers.

Exposure to loud noise was associated with increased concentrations of cholesterol-related biomarkers. (iStock)

The study found that people exposed to louder noise at night — especially sounds above 55 decibels — showed changes in 48 different substances in their blood. Twenty of these associations “remained robust” throughout all cohorts.

Exposure to loud noise was associated with increased concentrations of cholesterol-related biomarkers, especially LDL “bad” cholesterol, IDL (intermediate-density lipoprotein) and unsaturated fatty acids.

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As noise levels increased, starting at around 50 decibels, cholesterol markers rose steadily, the release stated.

The authors concluded that this study “provides evidence that nighttime road traffic noise exposure from 50 dB upward is associated with alterations in blood cholesterol and lipid profiles in adults.”

Researchers noted a link between traffic noise and cardiometabolic disease. (iStock)

Study co-author Yiyan He, doctoral researcher at the University of Oulu in Finland, noted that in this type of research, small effect sizes are expected, and environmental exposures such as traffic noise are “typically modest.”

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“Despite this, we observed statistically robust and consistent associations across many biomarkers, especially those related to LDL and IDL lipoproteins,” she told Fox News Digital.

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“We also identified a clear exposure-response pattern starting at around 50 dB, suggesting that metabolic changes become more evident as noise levels increase.”

This aligns with public health guidance, as the World Health Organization recommends lower nighttime noise limits at around 40 to 45 dB, Yiyan He added.

“This finding may clarify the association between traffic noise and cardiometabolic diseases,” the researchers wrote. (iStock)

“The 55 dB level is often used as an interim benchmark associated with substantial noise annoyance and sleep disturbance,” she said. “In our study, we observed associations not only at 55 dB, but also indications of effects emerging at around 50 dB.”

The strength and consistency of the cholesterol-related associations were surprising, as these changes are usually “subtle.”

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“Instead, we found consistent associations across multiple large European cohorts, which strengthens confidence that the findings may reflect real biological patterns,” Yiyan He went on. “We were also interested to see that effects were minimal below ~50 dB, suggesting a possible threshold-like pattern.”

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The researcher noted that these findings were consistent across genders, education levels and obesity status.

The study was restricted to White Europeans, which posed a limitation. There was also a lack of information on the fasting status in the UK Biobank.

Changes in cholesterol levels were more severe than researchers expected. (iStock)

“Fasting can influence levels of certain metabolites, particularly fatty acids,” Yiyan He said. “However, based on UK Biobank documentation, fewer than 10% of participants were fasting for at least eight hours, and our main findings focused on cholesterol-related biomarkers, which are generally less sensitive to short-term fasting.”

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The researchers also lacked information on bedroom location, indoor noise exposure and time spent at home.

“These factors may introduce non-differential exposure misclassification,” Yiyan He said. “Additionally, noise exposure estimates were based on participants’ temporary residential addresses at the time of blood sampling, without considering the duration of residence.”

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“Many of these limitations would tend to bias results toward the null, so the consistent associations we observed remain noteworthy.”

Experts recommend taking measures to limit traffic noise at night. (iStock)

Based on this latest research, Yiyan He noted that nighttime noise is a “health-relevant exposure,” not just “an annoyance.”

“Our findings suggest that nighttime traffic noise may subtly but consistently affect metabolic health,” she said. “While the changes in cholesterol and lipid levels for any one individual are small, traffic noise affects a very large number of people, which means the potential public health impact could be substantial.”

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The researcher recommends taking measures like improving sound insulation, using noise-reducing strategies and placing bedrooms on the quieter side of the home when possible.

“Because sleep is a key pathway linking noise to health, protecting the nighttime sleep environment is especially important,” she added.

Angelica Stabile is a lifestyle reporter for Fox News Digital.

Health

The Best Time To Drink Coffee for Weight Loss and a Faster Metabolism

Published

13 hours ago

February 27, 2026

Press Room

The Best Time To Drink Coffee for Weight Loss and a Faster Metabolism

The Best Time To Drink Coffee for Weight Loss and Fat Burn | Woman’s World

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