How eating eggs can boost heart health (2024)

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Researchers have shown how moderate egg consumption can increase the amount of heart-healthy metabolites in the blood, publishing their results today in eLife.

How eating eggs can boost heart health (1)

The findings suggest that eating up to one egg per day may help lower the risk of developing cardiovascular disease.

Eggs are a rich source of dietary cholesterol, but they also contain a variety of essential nutrients. There is conflicting evidence as to whether egg consumption is beneficial or harmful to heart health. A 2018 study published in the journal Heart, which included approximately half a million adults in China, found that those who ate eggs daily (about one egg per day) had a substantially lower risk of heart disease and stroke than those who ate eggs less frequently*. Now, to better understand this relationship, the authors of this work have carried out a population-based study exploring how egg consumption affects markers of cardiovascular health in the blood.

“Few studies have looked at the role that plasma cholesterol metabolism plays in the association between egg consumption and the risk of cardiovascular diseases, so we wanted to help address this gap,” explains first author Lang Pan, MSc, from the Department of Epidemiology and Biostatistics, Peking University, Beijing, China.

Pan and the team selected 4,778 participants from the China Kadoorie Biobank, of whom 3,401 had a cardiovascular disease and 1,377 did not. They used a technique called targeted nuclear magnetic resonance to measure 225 metabolites in plasma samples taken from the participants’ blood. Of these metabolites, they identified 24 that were associated with self-reported levels of egg consumption.

Their analyses showed that individuals who ate a moderate amount of eggs had higher levels of a protein in their blood called apolipoprotein A1– a building-block of high-density lipoprotein (HDL), also known as ‘good lipoprotein’. These individuals especially had more large HDL molecules in their blood, which help clear cholesterol from the blood vessels and thereby protect against blockages that can lead to heart attacks and stroke.

The researchers further identified 14 metabolites that are linked to heart disease. They found that participants who ate fewer eggs had lower levels of beneficial metabolites and higher levels of harmful ones in their blood, compared to those who ate eggs more regularly.

“Together, our results provide a potential explanation for how eating a moderate amount of eggs can help protect against heart disease,” says author Canqing Yu, Associate Professor at the Department of Epidemiology and Biostatistics, Peking University. “More studies are needed to verify the causal roles that lipid metabolites play in the association between egg consumption and the risk of cardiovascular disease.”

“This study may also have implications for Chinese national dietary guidelines,” adds senior author Liming Li, Boya Distinguished Professor at the Department of Epidemiology and Biostatistics, Peking University. “Current health guidelines in China suggest eating one egg a day, but data indicate that the average consumption is lower than this. Our work highlights the need for more strategies to encourage moderate egg consumption among the population, to help lower the overall risk of cardiovascular disease.”

* ‘Associations of egg consumption with cardiovascular disease in a cohort study of 0.5 million Chinese adults.’ Heart. 2018;104:1756-1763.

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  1. Emily Packer
    eLife
    e.packer@elifesciences.org
    +441223855373

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eLife transforms research communication to create a future where a diverse, global community of scientists and researchers produces open and trusted results for the benefit of all. Independent, not-for-profit and supported by funders, we improve the way science is practised and shared. From the research we publish, to the tools we build, to the people we work with, we’ve earned a reputation for quality, integrity and the flexibility to bring about real change. eLife receives financial support and strategic guidance from the Howard Hughes Medical Institute, Knut and Alice Wallenberg Foundation, the Max Planck Society and Wellcome. Learn more at https://elifesciences.org/about.

To read the latest Biochemistry and Chemical Biology research published in eLife, visit https://elifesciences.org/subjects/biochemistry-chemical-biology.

And for the latest in Epidemiology and Global Health, see https://elifesciences.org/subjects/epidemiology-global-health.

How eating eggs can boost heart health (2024)

FAQs

How eating eggs can boost heart health? ›

Their analyses showed that individuals who ate a moderate amount of eggs had higher levels of a protein in their blood called apolipoprotein A1– a building-block of high-density lipoprotein (HDL), also known as 'good lipoprotein'.

Do eggs help heart health? ›

Some studies show a connection between egg consumption and an elevated risk for heart disease. Other studies say eating eggs reduces the risk for some heart-related illnesses. “Context matters a lot when considering these studies,” Dr. Natarajan says.

What do cardiologists say about eggs? ›

The debate rages on whether the cholesterol in eggs, specifically in egg yolks, can raise the risk of heart disease or not. Some studies have found eggs may actually help protect the heart. But cardiologists are still careful about eating them. “I really don't recommend eggs at all,” Freeman says.

How many eggs for a heart patient? ›

For most healthy adults, it's safe to eat 1–2 eggs a day depending on how much other cholesterol is in your diet. If you already have high cholesterol or other risk factors for heart disease, it may be best to eat no more than 4–5 eggs per week.

What food makes your heart stronger? ›

Foods to eat
  • Fish high in omega-3 fatty acids (salmon, tuna, and trout)
  • Lean meats such as 95% lean ground beef or pork tenderloin or skinless chicken or turkey.
  • Eggs.
  • Nuts, seeds, and soy products (tofu)
  • Legumes such as kidney beans, lentils, chickpeas, black-eyed peas, and lima beans.
Mar 24, 2022

Is 3 eggs a day too much? ›

Eating one to three eggs per day can have several health benefits, but this varies from person to person. At this level of consumption, people can expect minimal changes in their cholesterol levels. It is unclear whether there is an upper limit on how many eggs a person can eat per day.

What's better for your heart eggs or oatmeal? ›

The 250 mg of cholesterol in egg WILL send cholesterol levels through the roof – so oatmeal is best.

Is there a downside to eating eggs? ›

For example, eggs typically are eaten with other foods high in salt, saturated fat and cholesterol, such as bacon, cheese and butter. These foods are known to increase heart disease risk and should be eaten sparingly. Most healthy people can eat up to seven eggs a week without affecting their heart health.

What is the best breakfast for your heart? ›

Some of our favorite heart-healthy breakfast ideas include avocado toast, oatmeal with nuts and berries, or a yogurt parfait. We recommend you limit the following from your breakfast: Sugars.

What are the benefits of eating eggs everyday? ›

Eggs Help Boost Nutrient Intake for Healthy Aging

They also contain a significant amount of leucine, an amino acid that is important for ongoing muscle support, as well as other key nutrients including vitamin D and Omega-3 fatty acids, plus a little known nutrient, choline, which is important for brain function.

How many times a week should you eat eggs? ›

It will also help to try and have vegetables and low fat cheese with your eggs rather than bacon or sausage. So, enjoy eggs in your weekly diet, but like everything in life, moderation is key. If you are in general good health, seven eggs per week should be fine.

Do eggs raise triglycerides? ›

Last, in a meta-analysis of 28 RCTs, egg consumption increased total cholesterol (TC), low-density lipoprotein cholesterol (LDL-c) and HDL-c levels but not the LDL-c/HDL-c ratio, TC:HDL-c ratio or triglyceride (TG) levels compared with low egg consumption diets (8).

Are eggs HDL or LDL? ›

In fact, some studies have found that even though consuming eggs on a daily basis may lead to marginal increases in LDL, it also increases HDL. This means that the total cholesterol to HDL ratio, an important predictor of heart disease, remains steady.

What is the #1 worst habit for your heart? ›

Smoking is one of the most harmful things people can do to themselves,” Dr. Maniar says. Blood flow drops, slashing oxygen that fuels the heart, which compensates by spiking blood pressure, heart rate and rhythm, and can lead to hardened and narrowed arteries and blood clots causing cardiovascular disease.

What are the three foods that heal your heart? ›

Certain foods, including leafy greens, whole grains, and fatty fish, can benefit your heart health and lower your risk of heart disease.

Which fruit cleans the heart? ›

Berries. Whether it's blueberries, blackberries, raspberries, or strawberries that you're drawn to most, all berries are heart-healthy fruit loaded with vitamin C and fiber. According to the Academy of Nutrition and Dietetics, Eating a high-fiber diet can help lower cholesterol and your risk of heart disease.

Is 6 eggs a day too much? ›

Six eggs a day is a hell of a lot, no matter how you cut it. An egg has 187 mg of cholesterol, and the recommended limit is 300 mg per day—or only 200 mg if you have diabetes or risk factors for heart disease. “You can definitely go with with one egg a day,” says Maxine Smith, R.D., L.D.

What is a heart-healthy breakfast? ›

Scrambled eggs, whole-grain toast, one cup of milk and sliced apples. Greek yogurt with whole-grain cereal and berries. Whole-grain toast with peanut butter or alternative, sliced apples, one cup of milk. Yogurt parfait with plain yogurt, ground flax seeds or muesli and fresh fruit.

Is 5 eggs a day too much? ›

While recent studies still don't offer a consistent answer, the average healthy person likely suffers no harm from eating up to seven eggs per week. In fact, eggs are a nutritious food. They are relatively low in calories and saturated fat, and rich in protein, vitamins, and minerals.

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