Abstract:Neurodegenerative diseases, such as Alzheimer"s disease, Parkinson"s disease, and Huntington"s disease, are primarily caused by the damage to brain neurons and commonly affect middle-aged and elderly individuals, posing a significant burden on aging societies. Studies has indicated that the pathologies of these diseases involve various mechanisms including neuroinflammation, mitochondrial dysfunction, and ferroptosis. Of these mechanisms, neuroinflammation is present before the onset of the disease and worsens as it progresses. Flavor compounds have shown potential in penetrating the blood-brain barrier due to their small size. Their unique multi-functional structure allows them to improve the brain microenvironment by inhibiting neuroinflammation and exerting a neuroprotective effect, which presents a new possibility for alleviating and treating neurodegenerative diseases. This paper provides an overview of neuroinflammation in neurodegenerative diseases, compares the different mechanisms of various flavor compounds in alleviating neuroinflammation and treating neurodegenerative diseases based on their chemical structures, and identifies the current research"s limitations and shortcomings while offering a new plan and direction for future treatment of neurodegenerative diseases and related studies.