Egg Consumption & Heart Failure, Heart Attack and Stroke
Title: Egg consumption and risk of heart failure, myocardial infarction, and stroke: results from 2 prospective cohorts
Author: Larsson et al
Journal: American Journal of Clinical Nutrition
Objective: “The aim of this study was to examine whether egg consumption is associated with incidence of heart failure, myocardial infarction, or stroke types.”
Previously, I have made a video about consuming eggs, egg yolks and health risks. I’ll quickly summarize it, but you should check it out if you want a more detailed presentation.
Health Benefit of Eggs: https://youtu.be/h59EyDeUf1s
So there are two really good meta-analysis from 2013 that have combined all the data about egg consumption, heart attack and stroke risk. Both of these studies found no increased risk of heart attack or stroke from egg consumption. The one exception was in diabetics or folks at risk of developing diabetes.
I think it’s also worth commenting on the nutritional value of eggs. 1 large chicken egg contains:
- 70 calories, 5g of fat, mostly unsaturated, 1g of carbohydrates, 6g of protein
- It is high in Vitamins A, D and E as well as Vitamins B12, riboflavin, folic acid, and niacin
- It contains the minerals iron, calcium, phosphate, and zinc
- It also contains lutein and carotenoid zeaxanthin,
- It’s worth noting also that 90% of the nutritional content is in the yolk, so dont skip it
This was a prospective study of 37,766 Swedish men and 32,805 Swedish women who were free of cardiovascular disease.
Egg consumption was assessed at baseline with a food-frequency questionnaire.
They identified incident cardiovascular disease cases through linkage with their national registry (Swedish National Patient and Cause of Death Registers).
The data were analyzed with the use of a Cox proportional hazards regression model.
During 13 years of follow up, the authors identified cases in men and women:
- 1628 Heart Failure
- 3262 myocardial infarction (heart attack)
- 2039 ischemic stroke
- 405 hemorrhagic stroke
- 1207 Heart Failure
- 1504 myocardial infarction
- 1561 ischemic stroke
- 294 hemorrhagic stroke
Heart attack or stroke: No statistically significant association with egg consumption
- no association in women,
- however, in men consuming more than 1 egg/day, there was a 30% increased risk (RR: 1.30; 95% CI: 1.01, 1.67). which is very interesting
Egg consumption was not associated with any CVD outcome in individuals with diabetes.
These findings are really interesting.
The first, which I expected to see, is that heart attack and stroke are not associated with egg consumption. This is consistent with the previous data.
What is somewhat surprising is the increased risk of heart failure in men. This is the first study I’ve seen that states this, and this is a big study.
Also, they did not see an increased risk in diabetics, which is not entirely consistent with the two meta analysis published in 2013.
We need Need more research on heart failure and in diabetic patients
Larsson, S. C., Akesson, A., & Wolk, A. (2015). Egg consumption and risk of heart failure, myocardial infarction, and stroke: results from 2 prospective cohorts. American Journal of Clinical Nutrition, 102(5), 1007-1013. doi:10.3945/ajcn.115.119263