A new review highlights the significant role of dietary lipids in preventing brain aging and cognitive decline. As the global burden of aging-related brain diseases, particularly dementia, continues to rise, this research offers promising insights into potential nutritional interventions that could improve brain function during aging. The review focuses on the intricate relationship between lipid homeostasis and brain aging, emphasizing the importance of maintaining synaptic plasticity to prevent cognitive impairment. By examining evidence from epidemiological and animal studies, the research team demonstrates the crucial functions of polyunsaturated fatty acids (PUFAs), specifically phospholipids such as phosphatidylcholine, phosphatidylserine, and plasmalogen, in promoting...