Alzheimer’s risk slashed by eating more of one common food, study suggests

A new study has revealed a link between egg consumption and reduced risk of Alzheimer’s disease.

The research from California’s Loma Linda University, published in the Journal of Nutrition, aimed to analyze the relationship between the neurological condition and dietary habits.

The study noted that eggs are known to be a “source of key nutrients that support brain health,” which led to this investigation.

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The researchers analyzed data from nearly 40,000 U.S. adults over 65 years old, from a large study linked to Medicare records, to identify Alzheimer’s diagnoses.

After 15 years, 2,858 people had developed Alzheimer’s. The participants’ diet and lifestyle were assessed via questionnaire.

Egg consumption was characterized by how often people ate them, on a scale from never to more than five times per week.

Egg intake was divided into two types: “visible” eggs, like boiled, scrambled or fried eggs eaten on their own, and “hidden” eggs, which are used as ingredients in foods like baked goods and packaged products.

People who ate eggs one to three times per month, or once a week, had a 17% lower risk of Alzheimer’s, the researchers found. Those who ate eggs five or more times per week had a 27% lower risk.

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Those who consumed no eggs had a higher risk of Alzheimer’s compared to those who ate about 10 grams of eggs per day, based on a separate model in the study.

“In this health-conscious population, moderate egg consumption was associated with a significantly lower risk of Alzheimer’s disease,” the researchers concluded. “These findings suggest a potential neuroprotective benefit of nutrients found in eggs when consumed as part of a balanced diet.”

Dr. Joel Salinas, a Harvard-trained behavioral neurologist and chief medical officer at Isaac Health, called this a “reasonably well-designed study with a long follow-up,” with a finding that is consistent with previous research.

“Eggs are concentrated sources of choline, DHA and B12, which are nutrients the aging brain depends on,” Salinas, who practices at NYU Langone, told Fox News Digital in an interview.

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“That said, this is observational data from a uniquely health-conscious population, so causation can’t be established here,” he pointed out. “It’s more directional rather than definitive.”

While eggs “aren’t quite the prescription yet,” Salinas said, they’re “one piece of a much larger health picture that includes exercise, a brain-healthy diet and more.”

Lauri Wright, director of nutrition programs at the University of South Florida’s College of Public Health, also reflected on these “encouraging” findings in an interview with Fox News Digital, urging people to “interpret them with some caution.”

Wright, who was not involved in the study, reiterated that the study is observational and can only show an association, not causation.

People who eat eggs regularly may have different lifestyle habits and dietary patterns that could influence the findings, she noted.

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Even so, she said, there are “some good reasons that eggs could play a role in brain health.”

“Egg yolks are one of the richest dietary sources of choline, which the body uses to make acetylcholine, a neurotransmitter involved in memory and cognitive function,” Wright said. “Eggs also provide nutrients linked to healthy aging, including lutein, zeaxanthin, vitamin B12, quality protein and small amounts of omega-3 fats.”

Wright added that eggs can “absolutely fit” into a healthy dietary pattern that supports brain health, but noted that the overall context of the diet matters.

“Eggs served with vegetables, whole grains, fruit, beans, nuts or fish are very different nutritionally than eggs consistently paired with processed meats, refined carbohydrates and high-sodium foods,” she said. “For most healthy adults, moderate egg intake can fit within a heart-healthy eating pattern.”

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Healthy eating is rarely about “one superfood,” according to the nutritionist.

“The bigger picture is maintaining an overall dietary pattern that supports cardiovascular and metabolic health, because what is good for the heart is often good for the brain as well,” she added.