Eggs really are good for you!

For any lingering controversy regarding eggs and cholesterol and heart disease, this new study reveals a considerable association between egg eating and a reduction in cardiovascular disease.

Meta-Analysis Am J Med

. 2021 Jan;134(1):76-83.e2. doi: 10.1016/j.amjmed.2020.05.046. Epub 2020 Jul 10.

Association Between Egg Consumption and Risk of Cardiovascular Outcomes: A Systematic Review and Meta-Analysis

Chayakrit Krittanawong 1Bharat Narasimhan 2Zhen Wang 3Hafeez Ul Hassan Virk 4Ann M Farrell 5HongJu Zhang 5W H Wilson Tang 6Affiliations expand

Abstract

Introduction: Considerable controversy remains on the relationship between egg consumption and cardiovascular disease risk. The objective of this systematic review and meta-analysis was to explore the association between egg consumption and overall cardiovascular disease events.

Methods: We systematically searched Ovid MEDLINE, Ovid Embase, Ovid Cochrane Database of Systematic Reviews, Scopus, and Web of Science from database inception in 1966 through January 2020 for observational studies that reported the association between egg consumption and cardiovascular disease events. Two investigators independently reviewed data. Conflicts were resolved through consensus. Random-effects meta-analyses were used. Sources of heterogeneity were analyzed.

Results: We identified 23 prospective studies with a median follow-up of 12.28 years. A total of 1,415,839 individuals with a total of 123,660 cases and 157,324 cardiovascular disease events were included. Compared with the consumption of no or 1 egg/day, higher egg consumption (more than 1 egg/day) was not associated with significantly increased risk of overall cardiovascular disease events (pooled hazard ratios, 0.99; 95% confidence interval, 0.93-1.06; P < .001; I² = 72.1%). Higher egg consumption (more than 1 egg/day) was associated with a significantly decreased risk of coronary artery disease (pooled hazard ratios, 0.89; 95% confidence interval, 0.86-0.93; P < .001; I² = 0%), compared with consumption of no or 1 egg/day.

Conclusions: Our analysis suggests that higher consumption of eggs (more than 1 egg/day) was not associated with increased risk of cardiovascular disease, but was associated with a significant reduction in risk of coronary artery disease.

Keywords: Acute myocardial infarction; Cardiovascular disease; Egg consumption; Meta-analysis; Stroke; Systematic review.

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