Misryoum reports that eating seafood twice a week may lower Alzheimer’s and dementia risk, alongside heart, bone and mood benefits.
A simple seafood habit may already be within reach, and new research suggests it could matter for brain health.
Misryoum says a review of scientific evidence points to regular seafood intake as a potential way to reduce the risk of Alzheimer’s disease and dementia.. The analysis looked across 281 peer-reviewed studies focused on seafood and human nutrition, with researchers highlighting an intake level that comes in at roughly 300 grams per week.
The takeaway, according to researchers described by Misryoum, is not about an extreme diet change. The message is that seafood can fit into everyday eating patterns without needing special products or high-cost routines.
Insight: When multiple studies line up in one direction, it’s often a sign that the pattern may be easier to act on than people think.
In recent years, other findings have echoed the idea that fish and seafood can support cognitive health. One study in Europe reported a link between higher fish consumption and a lower likelihood of cognitive decline, including Alzheimer’s and dementia.
Misryoum also notes that seafood is commonly discussed alongside broader dietary patterns, such as Mediterranean-style eating, which emphasizes foods rich in omega-3 fats.
Insight: The practical appeal here is that seafood sits inside existing meal habits, rather than requiring a whole new approach.
Beyond brain-related outcomes, the review highlighted additional reasons people may include seafood more regularly. Researchers pointed to seafood as a source of lean protein and a range of nutrients, including vitamins and minerals such as iodine, zinc, selenium, iron, and B-group vitamins.
For older adults, Misryoum says the benefits may extend to everyday physical function. Regular seafood consumption was described as potentially supporting bone health and helping maintain muscle strength, which can also be relevant for reducing the risk of falls.
Insight: Nutrition choices tend to show up over time, and pairing brain-health aims with muscle and bone support may make the overall picture more actionable.
The research also suggested wider health effects connected to seafood intake, including possible cardiovascular advantages and lower risk of depression.. Misryoum reports that omega-3s are often cited as a key ingredient, with the review framing them as helpful for inflammation and for supporting blood vessel function and brain structure.
Importantly, Misryoum says researchers contrasted whole seafood with omega-3 supplements, arguing that eating seafood may offer a broader set of benefits than relying solely on pills.. They also emphasized that fresh, frozen, and different types of seafood can count toward recommended weekly servings.