New Study Finds Fish Oil Supplements Do Not Protect Against Alzheimer’s Disease

Islamabad (News Desk): A new scientific study has found that fish oil supplements do not effectively protect against Alzheimer’s disease, challenging the widespread belief that omega-3 supplements can improve memory and reduce the risk of dementia.

According to research published in the medical journal EBioMedicine, fish oil supplements do not provide the expected benefits for brain health.

The study was conducted by researchers at the University of California and involved 365 participants aged between 55 and 80 who were considered to be at relatively high risk of developing Alzheimer’s disease.

Participants were divided into two groups. One group received a high-dose omega-3 supplement containing DHA (docosahexaenoic acid) daily for two years, while the other group was given a placebo.

Initial findings showed that DHA, a key omega-3 fatty acid found in fish oil, successfully reached the brain. After six months, DHA levels in the fluid surrounding the brain had increased by approximately 17 percent.

Despite this increase, researchers found no significant improvement in memory, cognitive performance, or overall brain health among participants taking the supplements. Brain scans also showed no evidence that fish oil slowed the shrinkage of brain regions commonly affected by Alzheimer’s disease.

The lead researcher said the findings do not support the use of fish oil supplements as an effective strategy for preventing Alzheimer’s disease.

Experts noted that rather than relying on supplements, people should focus on maintaining a healthy lifestyle to reduce the risk of cognitive decline and dementia. Recommended measures include regular physical activity, quality sleep, and a balanced diet.

Researchers added that while fish oil may offer other health benefits, current evidence does not support considering it a reliable method for preventing Alzheimer’s disease.