Parkinson's risk may be influenced by long-term dietary choices, doctors say

Key Points:

• Long-term dietary patterns, particularly Mediterranean-style and MIND diets rich in whole grains, vegetables, nuts, berries, fish, and olive oil, are linked to lower Parkinson’s risk and potentially milder symptoms by reducing inflammation and supporting brain vascular health.
• Foods high in flavonoids (such as berries, apples, tea, and moderate red wine) and caffeine (coffee and caffeinated tea) have been associated with reduced Parkinson’s risk, though causation is not established and effects may vary by gender.
• Omega-3 fatty acids from fatty fish and plant sources, as well as high-fiber and fermented foods that promote gut health, may support neuronal health and influence Parkinson’s development, but more definitive research is needed.
• Certain foods and exposures, including high milk consumption, ultraprocessed foods, pesticide exposure (notably paraquat and rotenone), and excess saturated fat and processed meats, have been linked to increased Parkinson’s risk, though findings are mostly observational.
• Experts emphasize that diet is one factor among many—including genetics, exercise, sleep, and environmental exposures—influencing Parkinson’s risk and progression, cautioning against attributing disease prevention or causation to any single food.