Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Eggs, particularly egg yolks, have been extensively studied for their effects on cardiovascular health, including their impact on arteries. Historically, eggs were believed to negatively impact arterial health due to their cholesterol content. However, recent scientific studies have nuanced this perspective. Research suggests that for most individuals, moderate egg consumption (up to one egg per day) does not significantly increase the risk of cardiovascular disease or negatively affect arterial function. Eggs are rich in nutrients such as phospholipids, omega-3 fatty acids (in some eggs), and antioxidants like lutein and zeaxanthin, which may have positive effects on arterial health by reducing inflammation and oxidative stress.

Some studies indicate that eggs can improve HDL ("good") cholesterol and shift LDL ("bad") cholesterol particles to larger, less harmful forms. However, in individuals with certain metabolic conditions, such as diabetes, high egg consumption may be associated with an increased risk of cardiovascular issues. Overall, the scientific consensus is that eggs, when consumed as part of a balanced diet, do not harm and may modestly support arterial health in the general population. This evidence base rates as moderate (3 out of 5) because findings are mixed and depend on individual risk factors. The use of eggs for supporting artery health is thus based on scientific investigation rather than tradition.

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