In this context, an in vivo study was conducted to analyze the n-3 FAs from various marine animals, including the effects of shrimp on the apolipoprotein E, type ε4, allele (APOE-ε4), a gene encoding the lipid protein responsible for intercellular trafficking of cholesterol and other lipids involved in the brain’s structure, which is also highly tethered to dementia. Here, APOE is linked to dementia.