The Study
Consumption of up to Three Eggs per Day Increases Dietary Cholesterol and Choline while Plasma LDL Cholesterol and Trimethylamine N‐oxide Concentrations Are Not Increased in a Young, Healthy Population
This study watched what happened to people's blood when they ate more eggs, but we don't know if they were randomly assigned to eat them or if they knew what they were eating. So we can say eggs were linked to some blood changes, but we can't say eggs caused those changes.
Analysis score
Maximum 90 for a randomized controlled trial.
Where the score came from
This study tested if eating up to three eggs a day affects heart health markers in young, healthy people.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 546 / 100
Quality score
Participants are randomly assigned to treatment or control groups, minimizing bias. The gold standard for testing whether an intervention causes an effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes — lowering LDL and raising HDL without increasing harmful markers suggests eggs may improve heart health profiles in young, healthy people.
- 2Eating 1 egg/day lowered bad cholesterol (LDL) by 10.9%, raised good cholesterol (HDL), and improved the LDL/HDL ratio.
- 3Eating 1–3 eggs/day didn’t raise TMAO, weight, blood pressure, or liver enzymes.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
The FASEB Journal
Year
2017
Authors
Bruno S. Lemos, Diana M. DiMarco, Amanda Missimer, A. Murillo, O. Malysheva, M. Caudill, C. Blesso, M. Fernandez
Related Content
Claims (6)
Eating foods that contain cholesterol—like eggs or shrimp—won't make a healthy person more likely to get heart disease.
Eating up to three eggs a day for a month might help lower bad cholesterol and raise good cholesterol in healthy young adults, without making them gain weight or increasing a chemical linked to heart disease — which could be good for their heart health.
Eating one to three eggs a day for a month can raise your body's choline levels in a safe way — more eggs mean higher levels, but not so high that it becomes harmful.
Eating up to three eggs a day for a month doesn't seem to raise levels of a blood chemical linked to heart disease, even though eggs contain a nutrient called choline. This suggests that the choline in eggs doesn't turn into that harmful chemical in healthy young people.
Eating one to three eggs a day for a month might help improve your heart health by lowering the bad cholesterol relative to the good cholesterol, even if your overall cholesterol and weight don’t change.
Eating up to three eggs a day for a month doesn't seem to make healthy young adults gain weight or worsen their blood sugar, cholesterol, or liver health.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.