Heart health: does one egg damage our heart a day?

Heart health: does one egg damage our heart a day?

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What is the maximum number of eggs we should have in a day?

There have been discussions for years about whether eggs are healthy or unhealthy for the health of our hearts. A recent study now underlines that eating one egg a day does no harm to the heart.

McMaster University's latest research found that eating one egg a day is safe for heart health. The results of the study were published in the American Journal of Clinical Nutrition.

One egg a day does not affect heart health

The controversy over whether eggs are generally good or bad for heart health seems to have finally been resolved. The results of the analysis, which are based on data from three large, multinational, long-term studies, suggest that eating eggs does not appear to cause harm. Since the majority of the people in the study ate one or fewer eggs a day, it is safe to eat one egg a day, the researchers report.

Are people with cardiovascular disease or diabetes allowed to eat eggs regularly?

Moderate egg consumption, which is around one egg a day for most people, does not increase the risk of cardiovascular disease or mortality, even if people have had cardiovascular disease or diabetes in the past, the authors add added to the study.

How does egg consumption affect blood cholesterol?

There was also no association between egg consumption and blood cholesterol, its components or other risk factors. These results apply to both healthy people and people with vascular diseases.

A maximum of three eggs a week?

Although eggs are an inexpensive source of essential nutrients, some guidelines recommend restricting consumption to less than three eggs a week. This is due to the fact that in the past, eating eggs has been linked to the development of cardiovascular diseases.

Previous investigations had weaknesses

However, previous studies on egg consumption and diseases were contradictory. "This is probably because most of these studies were relatively small or moderately large and did not involve people from a large number of countries," study author Salim Yusuf from McMaster University's Population Health Research Institute (PHRI) said in a press release.

Where did the data come from?

Three international studies conducted by the PHRI were analyzed. In the PURE study, the egg consumption of 146,011 people from 21 countries was examined, in the ONTARGET and the TRANSEND study the data of 31,544 patients with vascular diseases were recorded. The data from these three studies included populations from 50 countries on six continents with different income levels, so that the results apply to many countries and are also widely applicable. (as)

Author and source information

This text corresponds to the specifications of the medical literature, medical guidelines and current studies and has been checked by medical doctors.


  • Mahshid Dehghan, Andrew Mente, Sumathy Rangarajan, Viswanathan Mohan, Scott Lear et al .: Association of egg intake with blood lipids, cardiovascular disease, and mortality in 177,000 people in 50 countries, in American Journal of Clinical Nutrition (Published Jan 21, 2020) , American Journal of Clinical Nutrition
  • An egg a day not tied to risk of heart disease, McMaster University (Published 1/27/2020), McMaster University

Video: The Truth About a Recent Study on Eggs (January 2023).