Omega-3 in Blood Strongly Tied to Longer Life in Seniors, Study Finds
A new study has found that certain blood fatty acids, including omega-3, strongly predict life expectancy in older adults. Researchers tracked 2,240 people over 65 for nearly eleven years, uncovering surprising links between diet and longevity. Some findings even challenge long-held beliefs about unhealthy fats. The study analysed blood samples from participants aged 65 and above. Four fatty acids, including omega-3, proved better at predicting mortality risk than traditional factors like smoking. High omega-3 levels in red blood cells were linked to a longer life—adding nearly five years compared to those with low levels.
Eating oily fish, rich in omega-3, played a key role. The American Heart Association already advises consuming it twice a week for heart health. Meanwhile, regular smoking cut life expectancy by 4.7 years—the same impact as having low omega-3. Unexpectedly, two saturated fats often tied to heart disease were associated with longer life in this group. The team now plans to test these results in European populations. The findings could lead to tailored diet advice based on individual blood fatty acid profiles.
Blood omega-3 levels now appear as strong a mortality predictor as smoking. The study suggests diet changes, like adding oily fish, could significantly extend life. Further research may refine how fatty acid testing shapes personal health recommendations.
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