Eating eggs in moderation may improve heart health

Eating eggs in moderation may improve heart health

June 7, 2022

health diary editor

Eating eggs in moderation may improve heart health

Have you ever avoided eggs for years because the doctor said they were bad for you?
[Imagem: Michal Jarmoluk/Pixabay]

Eggs are good for the heart

Strengthening a research trend in recent years — contrary to what scientists themselves have argued for decades — researchers have now shown that moderate consumption of eggs can increase the amount of heart-healthy metabolites in the blood.

The findings suggest that eating up to one egg a day may help reduce the risk of cardiovascular disease.

Eggs are a rich source of dietary cholesterol, but they also contain several essential nutrients. But scientists can’t agree on whether eating eggs is good or bad for heart health.

A study published in the journal in 2018 HeartThe study, which included about 500,000 adults in China, found that people who ate eggs every day (about one egg a day) had significantly lower risks of heart disease and stroke than those who didn’t eat eggs regularly.

Now, to better understand this relationship, the same team has conducted a population-based study exploring how egg intake affects blood cardiovascular health markers.

“Few studies have looked at the role of plasma cholesterol metabolism in the relationship between egg intake and cardiovascular disease risk, so we wanted to help address this gap,” explained Dr. Lang Pan of Peking University.

Egg-derived metabolites

The team used a technique called targeted nuclear magnetic resonance to measure 225 metabolites in plasma samples taken from the participants’ blood (3,401 with cardiovascular disease and 1,377 without). Among these metabolites, they identified 24 metabolites that correlated with self-reported levels of egg consumption.

Analysis showed that people who ate moderate amounts of eggs had higher blood levels of apolipoprotein A1, a component of high-density lipoprotein (HDL), also known as “good cholesterol.”

These people have more of the macromolecule HDL in their blood, which helps clear cholesterol from blood vessels, preventing blockages that can lead to heart attacks and strokes.

The researchers further identified 14 metabolites associated with heart disease. They found that participants who ate fewer eggs had lower blood levels of beneficial metabolites and higher levels of harmful metabolites than those who ate eggs regularly.

“Overall, our findings provide a potential explanation for how eating moderate amounts of eggs may help prevent heart disease,” said researcher Canqing Yu. “Further studies are needed to verify the causal role played by lipid metabolites in the association between egg intake and cardiovascular disease risk.”

Check out scientific articles:

article: Associations of egg consumption, metabolic markers, and cardiovascular disease risk: a nested case-control study
Authors: Pan Lang, Chen Lu, Lu Jun, Pang Yuanjie, Guo Yu, Pei Pei, Du Huaidong, Yang Ling, Iona Y. Millwood, Robin G. Walters, Chen Yiping, Gong Weiwei, Chen Junshi, Yu Canqing, Chen Zhengming, Li Liming
Published by: esports
Volume: 104, Issue 21
DOI: 10.7554/eLife.72909

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