After analyzing the results, they discovered only 11 percent of the subjects maintained good health through old age, which they believe was due to omega-3 acids.
While the nutrients are found in foods like nuts, leafy greens vegetables and flaxseed oils, the results show omega-3s in seafood had the greatest effect. In fact, seafood with omega-3s was linked with a 24 percent lower risk of unhealthy aging.
"These findings encourage the need for further investigations into plausible biological mechanisms and interventions related to n3-PUFAs [omega-3s] for maintenance of healthy aging, and support guidelines for increased dietary consumption of fish among older adults," the authors wrote in a statement.
The scientists think the omega-3s can prevent heart disease, depression and Alzheimer’s disease, but more research is needed to explore its benefits.
"Any evidence-based clues to improve health in later life are welcome but additional efforts to accelerate this area of research are essential," they concluded.