If you’re optimizing for longevity and cognitive sharpness through nutrition and biohacking, here’s one micronutrient you don’t want to overlook: vitamin K.
The post Biohackers, take note: Vitamin K in real food might be the brain longevity link appeared first on Green Prophet.
Sandor Katz biohacked his HIV diagnosis using sauerkraut. It’s high in K.
If you’re optimizing for longevity and cognitive sharpness through nutrition and biohacking, here’s one micronutrient you don’t want to overlook: vitamin K.
New research from the Tufts University suggests that low vitamin K intake might sabotage brain performance as we age. In a study on middle-aged mice, researchers found that a vitamin K deficiency ramped up brain inflammation and reduced neurogenesis—particularly in the hippocampus, the brain’s memory and learning hub.
The hippocampus is one of the rare regions in the adult brain capable of generating new neurons. It’s a core area you want functioning at peak capacity if you’re interested in enhancing learning, memory, and long-term cognitive health.
But here’s the catch: mice on a low-vitamin K diet showed poor performance on memory and spatial learning tests. In real-world terms? Imagine walking into a room and forgetting why you went there—more often.
The study focused on menaquinone-4 (MK-4), a brain-active form of vitamin K2. Deficiency in MK-4 not only dulled cognition but also triggered neuroinflammation. Researchers saw more activated microglia—the brain’s immune cells—which, when overstimulated, can contribute to chronic brain inflammation and neurodegeneration.
Bottom Line: Brain Fog Isn’t Just About Sleep or Stress
There’s growing evidence that neuroinflammation is a root driver of age-related cognitive decline. And vitamin K might be a lever you can pull to reduce that risk.
“Vitamin K seems to have a protective effect,” says lead researcher Tong Zheng. “Our research is trying to understand the mechanisms behind that, so we can eventually target them mo
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