Health & Nutrition
Eggs and Good Cholesterol: The Healthy Connection You Need to Know
By Shin • July 14, 2025
For decades, eggs were unfairly demonised in dietary advice due to the misconception that consuming dietary cholesterol directly elevates blood cholesterol and increases heart disease risk. Early dietary guidelines often recommended limiting egg consumption based on this belief, sometimes without comprehensive epidemiological data or clinical interventions. However, modern scientific understanding, supported by extensive research, challenges this outdated view, now recognising eggs as an economical, versatile, and nutrient-dense food in a healthy diet.
Eggs and Good Cholesterol: The Healthy Connection You Need to Know
A crucial distinction to grasp is between dietary cholesterol—the cholesterol you consume from foods like eggs—and blood cholesterol, which circulates in your body. It is an oversimplification to assume a direct, one-to-one relationship between the two.
The human body is remarkably adept at regulating its own cholesterol levels; in fact, most of the cholesterol in your body is produced internally (biosynthesis), not absorbed from your diet [1]. Only about 25% of serum cholesterol in humans is typically derived from the diet, with the rest coming from the body’s own production [1].
When you consume dietary cholesterol, your body employs sophisticated compensatory mechanisms to maintain balance [1, 3]. These include reducing the absorption of cholesterol from the intestines and suppressing the body’s own cholesterol production [1, 8]. This is why, for most individuals, dietary cholesterol intake does not drastically alter blood cholesterol levels; the body is remarkably adept at regulating its own cholesterol[1, 8].
“A Case in Point: The 88-Year-Old Egg Lover
A remarkable example illustrating these compensatory mechanisms is the case of an 88-year-old man who consumed 20–30 eggs daily (about 4500 mg of cholesterol) for many years. Despite this extraordinary intake, he maintained normal blood cholesterol levels and experienced no heart problems, thanks to his body’s ability to significantly reduce cholesterol absorption and increase bile acid synthesis.[1] ”
Key Scientific Findings on Eggs
Recent scientific findings from various research designs, including randomised controlled trials (RCTs) and large-scale observational studies, provide compelling insights into the impact of egg consumption on health:
- For the vast majority of healthy individuals (approximately two-thirds of the population, often referred to as “hypo-responders” or “compensators”), consuming eggs leads to minimal or no significant changes in blood cholesterol concentrations [1, 8].
This is largely due to the human body’s remarkable ability to regulate its own cholesterol levels, as most of the cholesterol in your body is produced internally, not absorbed from the diet [1].
When dietary cholesterol is consumed, the body employs sophisticated compensatory mechanisms, such as reducing the absorption of cholesterol from the intestines and suppressing its own cholesterol production [1, 8]. - Numerous large-scale epidemiological studies and meta-analyses have found only tenuous associations or a lack of association between moderate egg consumption and cardiovascular disease (CVD) risk in the general healthy population [1, 3, 4, 8].
For example, studies have shown that intake of up to one egg per day is not associated with an increased risk of coronary heart disease (CHD) or stroke [2, 6].
One meta-analysis of 23 RCTs found non-significant effects of increasing egg consumption on risk markers for CVD [4].
- While some individuals (“hyper-responders”) may experience increases in both low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C), this often occurs without significantly altering the LDL-C/HDL-C ratio [1, 8]. This ratio is considered a better predictor of cardiovascular risk than isolated lipid parameters [1, 7]
Moreover, egg consumption has been shown to- Promote the formation of larger LDL particles, which are considered less harmful and less likely to contribute to plaque buildup [1, 5, 8].
- Increase HDL-C (often referred to as the “good” cholesterol) and the concentration of large HDL particles [1, 8].
- Lead to improvements in other markers of HDL function, such as enhancing the ability to remove excess cholesterol from cells (cholesterol efflux capacity) [1, 8]and increasing the activity of enzymes like paraoxonase-1 (PON1) and lecithin-cholesterol acyltransferase (LCAT) [1].
Conclusion: Making an Informed Choice
In conclusion, the scientific understanding of eggs and cholesterol has moved beyond outdated fears. The focus has rightly shifted to the body’s remarkable ability to self-regulate cholesterol, allowing us to embrace eggs as a valuable part of our diet. For the vast majority of healthy individuals, eggs are not just a valuable addition, but a key component for positively influencing lipoprotein profiles and promoting long-term health. By choosing to include more eggs in a balanced diet, you can confidently enjoy their abundant benefits, making them a cornerstone of your journey to well-being
Referrences:
- Blesso, CN, Fernandez, ML. Dietary Cholesterol, Serum Lipids, and Heart Disease: Are Eggs Working for or Against You?. Nutrients. 2018;10(4):426. https://doi.org/10.3390/nu10040426
- Rong, Y, Chen, L, Zhu, T, Song, Y, Yu, M, Shan, Z, Sands, A, Hu, FB, Liu, L. Egg consumption and risk of coronary heart disease and stroke: dose-response meta-analysis of prospective cohort studies. BMJ. 2013;346:e8539.https://doi.org/10.1136/bmj.e8539
- Mofrad, MD, Naghshi, S, Lotfi, K, Beyene, J, Hypponen, E, Pirouzi, A, Sadeghi, O. Egg and Dietary Cholesterol Intake and Risk of All-Cause, Cardiovascular, and Cancer Mortality: A Systematic Review and Dose-Response Meta-Analysis of Prospective Cohort Studies. Front Nutr. 2022;9:878979. https://doi.org/10.3389/fnut.2022.878979
- Carter, S, Connole, ES, Hill, AM, Buckley, JD, Coates, AM. Eggs and Cardiovascular Disease Risk: An Update of Recent Evidence. Curr Atheroscler Rep. 2023;25:373–80. https://doi.org/10.1007/s11883-023-01109-y
- Fernandez, ML. Dietary cholesterol provided by eggs and plasma lipoproteins in healthy populations. Curr Opin Clin Nutr Metab Care. 2006;9(1):8-12. https://doi.org/10.1097/01.mco.0000171152.51034.bf
- Alexander, DD, Miller, PE, Vargas, AJ, Weed, DL, Cohen, SS. Meta-analysis of Egg Consumption and Risk of Coronary Heart Disease and Stroke. J Am Coll Nutr. 2016;35(8):704–16. https://doi.org/10.1080/07315724.2016.1152928
- Li, MY, Chen, JH, Chen, C, Kang, YN. Association between Egg Consumption and Cholesterol Concentration: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Nutrients. 2020;12(7):1995. https://doi.org/10.3390/nu12071995
- Fernandez, ML, Murillo, AG. Is There a Correlation between Dietary and Blood Cholesterol? Evidence from Epidemiological Data and Clinical Interventions. Nutrients. 2022;14(10):2168. https://doi.org/10.3390/nu14102168
About The Author
I’m Shin , the co-founder of egghey. I started this brand to share the incredible taste of truly fresh eggs from my family’s farm in Perak. I hope you enjoy them as much as we do!
