By SPEAKIN’ OUT NEWS
Millions of Americans take fish oil supplements hoping to protect their memory as they age, but a new clinical trial suggests the popular capsules may not prevent Alzheimer’s disease or slow cognitive decline.
The two-year study followed 365 adults ages 55 to 80 who were considered at increased risk for Alzheimer’s disease. Participants received either a daily high-dose omega-3 supplement containing DHA or a placebo. Researchers found that while DHA levels in the brain increased by about 17% after six months, the supplement did not improve memory, thinking skills, or slow the loss of brain tissue associated with Alzheimer’s.
The findings underscore the importance of clinical trials in determining whether widely used supplements actually provide the health benefits many consumers expect.
Researchers concluded that fish oil supplements alone are unlikely to prevent the most common form of dementia. Instead, they recommend focusing on proven lifestyle habits that support long-term brain health, including regular exercise, quality sleep, a heart-healthy diet, and managing chronic conditions such as high blood pressure, diabetes, and high cholesterol.
The study also has special significance for Black Americans, who are about twice as likely as White Americans to develop Alzheimer’s disease or other forms of dementia. Health experts say increasing participation in clinical research can help scientists better understand why these disparities exist and ensure future treatments are effective across diverse populations.
While fish oil may still provide benefits for heart health in some individuals, researchers say there is currently no strong evidence that it can prevent Alzheimer’s disease. Maintaining a healthy lifestyle remains the most effective strategy for protecting brain health as people age.