Longevity Magazine

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Vitamin K for cognition
Cognition
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2 min read

Vitamin K for cognition

Vitamin for the mind. Could a simple vitamin found in leafy greens keep your brain sharp with age? New research from Tufts University hints that vitamin K deficiency might speed up mental decline—especially in memory and learning.Key facts & findingsBrain booster: Vitamin K shows up in brain tissue as menaquinone-4, potentially supporting cognitive function.Less K, more problems: Mice lacking vitamin K displayed worse results in tests assessing memory and spatial learning.Hippocampus hit: The vitamin K–deficient group had fewer new neurons in the dentate gyrus, a key region for learning.Inflammation spike: These deficient mice also showed overactive immune cells (microglia), leading to higher brain inflammation.Additional context & expert insightVitamin K is typically found in dark, leafy veggies—like spinach and kale—and is already known for aiding blood clotting. This study suggests it might also protect the aging brain by boosting neuron formation and reducing inflammation. “We’re not telling everyone to go buy supplements,” says the research team, who stress that a balanced diet is the real key. Put differently: your daily salad might do more than keep your arteries clear—it may also keep your mind in top form.Looking aheadScientists plan to dig deeper into the exact mechanisms tying vitamin K to brain health, and possibly see if the same trends hold in humans of all ages. For now, consider upping your veggie intake. Your brain, and maybe your future self, will thank you.