Surprising new findings on the impact of eggs on heart health

"I eat eggs most mornings," states a renowned author and science journalist from the UK, Dr. Michael Mosley.

"Not too long ago," he continues, "this was considered as nutritional suicide."

For years, the prevailing medical belief was that consuming high-cholesterol foods, like eggs, would lead to clogged arteries.

However, Mosley now asserts that this fear is baseless, and he encourages people to enjoy eggs as they are a rich source of high-quality protein, vitamins, minerals, phospholipids, and carotenoids.

This viewpoint is well-documented in scientific research, with numerous studies backing up his assertions. Surprisingly, the cholesterol in food, found in animal products such as meat, milk, and eggs, does not impact blood cholesterol levels.

Moreover, a recent human trial has revealed that eggs not only do not harm the heart but may actually decrease the risk of heart attack and stroke!

Early Research Had Limitations

The original connection between cholesterol and heart disease dates back to 1913 when rabbits fed large amounts of cholesterol developed artery issues. Similar results were seen in other animals as well.

However, these experiments were primarily conducted on herbivores that mainly consume plant-based diets and do not typically eat cholesterol-containing animal products. The rationale behind such studies is hard to understand.

Subsequent studies on dogs, which are carnivores, demonstrated that excess cholesterol was managed and expelled without causing harm.

Due to the herbivore studies and the assumption that consuming cholesterol raises bodily cholesterol levels, "experts" recommended reducing cholesterol intake to improve HDL and LDL levels in blood tests, a widely accepted belief.

Scientist Changes Position

Biologist and pathologist Dr. Ancel Keys, known for linking saturated fat to heart disease, initially believed in 1952 that there was overwhelming evidence pointing to cholesterol as the culprit.

However, three years later, he shifted his stance after finding that no matter how much cholesterol he added to volunteers' daily diets (up to 3000 mg, equivalent to consuming 15 large eggs), their blood cholesterol levels remained unaffected.

Unfortunately, this information did not resonate with some individuals in the scientific community who were thought to be knowledgeable.

In 1992, a thorough analysis of the evidence indicated that the body regulates cholesterol levels to maintain internal stability regardless of dietary intake.

A review of 17 previous studies published in the British Medical Journal in 2013 concluded that "higher egg consumption (up to one per day) is not associated with an increased risk of coronary heart disease or stroke."

Official Approval: Eggs as Part of Your Diet

The peak of egg consumption was in the 1940s when people were consuming an average of 380 eggs per year - more than one egg per day. This decreased to a low of 230 in the mid-1990s but has since risen to 279, indicating increased awareness among the public.

Even the latest Dietary Guidelines for Americans 2015 - 2020 Eighth Edition have removed the previous recommendation of limiting daily dietary cholesterol to 300 mg. (Interestingly, they still suggest minimizing dietary cholesterol intake as much as possible.)

Health authorities now focus more on saturated fats but acknowledge that certain foods like eggs, high in dietary cholesterol but low in saturated fats, can be included in the diet.

Approximately two decades ago, when it became evident that dietary cholesterol minimally impacts blood cholesterol levels, some "experts" shifted the blame to saturated fats. However, that is a topic for another discussion. . .

Eggs Support Heart Health

In a recent study published in the May edition of Heart, 175 researchers from the UK and China analyzed data from 416,213 Chinese adults aged 30 to 79 who were free of cardiovascular disease, diabetes, or cancer and followed them up nine years later.

Individuals consuming an average of 5.32 eggs per week had a 26% lower risk of hemorrhagic stroke and a 28% reduced risk of mortality from this type of stroke compared to those consuming only two eggs per week. They also had a 12% lower risk of heart disease and an 18% lower risk of cardiovascular disease-related death.

These findings suggest that eggs are not harmful to heart health but rather beneficial. Misguided medical advice could have resulted in preventable deaths.

The authors conclude: "[A] moderate level of egg consumption (up to <1 egg/day) was significantly associated with a reduced risk of cardiovascular disease, largely independent of other risk factors."

While the study population in China differs from Americans in various aspects, the evidence is compelling. Previous studies have shown that eggs are harmless, and this study suggests they may be more effective than statin drugs in reducing heart issues.

In conclusion, I have been consuming eggs for many years.

Dr. Luc Djousse, Associate Professor of Medicine at Harvard Medical School, agrees: "The main point from this [study] is that when consumed in moderation, there seems to be no increased risk of heart disease or stroke."

This viewpoint is echoed by Tim Chico, Professor of Cardiovascular Medicine at the University of Sheffield, UK:

"Individuals who incorporate eggs into their diet can be assured that they do not seem to pose a risk to their heart."