Recent study revealed that regular intake of fish can reduce the risk of dementia however regular intake of meat can increase the risk.

Research team analyzed the data collected from 15,000 people aged 65 and older in China, India, Cuba, the Dominican Repbublic, Venezuela, Mexico and Peru. Face to face interviews were conducted with the study subjects to analyze their dietary habits. The study subjects were also assessed using a cross-culturally validated dementia diagnosis tool.

Data analysis revealed that people who eat fish daily have 20 percent lower risk of developing dementia as compared to those who ate fish a few times a week whereas these people have 20 percent less risk of dementia than those who ate no fish at all.

Dr. Emiliano Albanese, a clinical epidemiologist at King's College London, the senior author of the study said: "There is a gradient effect, so the more fish you eat, the less likely you are to get dementia. Exactly the opposite is true for meat."

Researchers added that an inverse association between fish consumption and dementia that was consistent across all of the countries except India.