Global Omega-3 Deficiency Heightens Heart Disease Risk, Study Finds

A recent analysis has revealed that more than three-quarters of the global population is not consuming sufficient omega-3 fatty acids, a deficiency linked to an increased risk of heart disease, cognitive decline, and other health issues. The study, published in Nutrition Research Reviews, involved researchers from the University of East Anglia, the University of Southampton, and Holland & Barrett, highlighting a significant public health concern.

The research indicates that approximately 76% of individuals worldwide fail to meet the recommended daily intake of essential omega-3 fatty acids, specifically eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). According to global health authorities, adults should aim for at least 250 milligrams of these nutrients each day. However, actual consumption levels are alarmingly lower in many regions.

To understand the implications of this nutrient gap, Fox News Digital consulted with Michelle Routhenstein, a preventive cardiology dietitian based in New York. She emphasized that low omega-3 levels can significantly affect heart health, cognitive function, and inflammation. Routhenstein noted that inadequate intake is associated with a higher risk of heart attacks and sudden cardiac deaths, as well as elevated triglycerides and irregular heart rhythms.

The study further indicates that insufficient omega-3 levels may lead to cognitive decline and higher risks of Alzheimer’s disease and depression. Routhenstein pointed out that low omega-3 intake can exacerbate inflammation in autoimmune diseases such as psoriasis and negatively impact eye health, as omega-3s play a crucial structural role in the retina.

To combat these deficiencies, Routhenstein advises individuals to incorporate more omega-3-rich foods into their diets. “The richest dietary sources of EPA and DHA are oily fish, such as salmon, mackerel, sardines, herring, trout, and anchovies,” she stated. Consuming these fish three to four times a week can significantly improve omega-3 levels for many people.

For those who do not regularly consume fish, omega-3 supplements may be an effective alternative. Routhenstein recommends that dosing should be personalized based on lab results, medications, and individual health history. She also highlighted that moderate, quality-controlled supplements are generally safe for most individuals.

Prescription-strength omega-3 products have shown efficacy in specific high-risk populations. “High-dose EPA, such as 4 grams per day of icosapent ethyl, has been shown to reduce major cardiovascular events,” Routhenstein explained. In contrast, similar doses of combined EPA and DHA have not consistently demonstrated the same benefits.

Testing omega-3 levels through the omega-3 index, a blood test measuring EPA and DHA in red blood cells, can provide valuable insights into individual nutritional status. Routhenstein noted that levels around 8% are associated with lower cardiovascular risk, while levels below approximately 4% are considered low.

For those uncertain about their omega-3 status or supplementation needs, consulting a healthcare provider is essential. Understanding baseline levels can aid in making informed dietary and supplementation decisions, ultimately supporting better heart health and overall well-being.