Nutrients Review Links 54 Studies to Lifelong Brain Gains From Eggs, Fish and Greens
Updated
Updated · Science X · Jun 3
Nutrients Review Links 54 Studies to Lifelong Brain Gains From Eggs, Fish and Greens
2 articles · Updated · Science X · Jun 3
Summary
A new Nutrients review found evidence across 54 studies that nutrient-dense foods including eggs, fish, leafy greens, berries, nuts and whole grains are associated with better memory, attention and cognitive health across the lifespan.
Early-life findings point to eggs, meat and nuts as notable sources of choline, iron, zinc and healthy fats, while in older adults higher fish intake and Mediterranean- or MIND-style diets were tied to slower cognitive decline and lower dementia risk.
Blueberry and walnut supplements showed some benefits for memory, attention and mood in smaller studies, but the review said effects were generally modest and no single food acts as a cure-all.
Most evidence remains observational, methods vary widely, and data are sparse for teenagers and low- and middle-income countries, leaving researchers to call for longer, better-controlled trials in more diverse populations.