New Study Links Key Nutrients to Lower Dementia Risk, Highlights Dietary Importance
June 14, 2025
Conducted by researchers at Columbia University, the study analyzed data from the Health and Retirement Study, focusing on adults aged 50 and older to explore the dietary impacts on dementia risk.
A new study has identified specific nutrients that may help lower the risk of dementia, highlighting the importance of vitamins, minerals, and dietary fiber.
The findings revealed that high sugar intake is associated with an increased risk of dementia, underscoring the need for dietary awareness.
Isorhamnetin, an antioxidant found in fruits and vegetables like onions, berries, and green grapes, along with manganese present in nuts, legumes, and whole grains, contribute to these protective effects.
Vitamin E sources, including nuts, seeds, and vegetable oils, also provide protective effects against cellular damage, further supporting brain health.
Despite these findings, fiber is lacking in the diets of most Americans, and increasing intake through fruits, vegetables, and whole grains is recommended to enhance overall health.
Practical dietary suggestions from the study include swapping unhealthy snacks for nutrient-rich alternatives and considering the MIND diet, which combines Mediterranean and DASH diets to promote cognitive health.
However, the study has limitations, including potential biases in dietary recall and the lack of clinical evaluations for cognitive abilities, as well as not accounting for genetic and environmental factors.
Dementia, characterized by memory loss and cognitive decline, is projected to double by 2060, significantly increasing the economic burden on caregivers.
Overall, the study emphasizes the importance of diet, physical activity, stress management, and social connections in maintaining brain health and potentially reducing dementia risk.
Participants provided detailed food consumption data through a questionnaire assessing 101 nutrients, while their cognitive abilities were evaluated through interviews and proxy reports.
Specifically, the study found strong associations between dementia risk reduction and five key nutrients: isorhamnetin, manganese, dietary fiber, beta-tocopherol, and beta-tocotrienol, which are forms of vitamin E.
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EatingWell • Jun 13, 2025
4 Nutrients You Should Be Eating to Help Lower Dementia Risk, According to a New Study