Is Your Diet Destroying Your Brain?!
Your brain is remarkable.
While sleeping, it activates a trash removal system that flushes toxins, damaged proteins, and other harmful materials out of your brain.
Incredibly, while habits like smoking, stress, and overeating can kill neurons, your brain can grow NEW ones!
However, you need to get plenty of this key nutrient to ensure it has what it needs to make these new brain cells…
Vitamin K is best known for its role in blood clotting, bone health, and heart health.
But today, I want to highlight its role in protecting your brain.
Higher vitamin K levels are associated with improved cognitive function, slower cognitive decline, and a lower risk of mild cognitive impairment and dementia.
Unfortunately, about half of older adults aren’t getting the recommended amounts of vitamin K, a deficiency that could be extremely harmful to your brain as you age.
In a recent study, researchers compared the cognitive performance of mice fed a regular diet with that of mice fed a diet low in vitamin K.
The vitamin K-deficient mice scored poorly on memory and learning tests.
When researchers studied their brain tissue directly, they also found significant changes in the area of their brain associated with memory and learning (the hippocampus).
This included two significant problems:
- a reduction in new brain cells, and
- increased neuroinflammation.
You’ve been told that your diet affects your waistline, your heart health, and your risk of type 2 diabetes.
But you should also be eating for your brain health.
The best food sources of brain-protective vitamin K include green, leafy vegetables like kale and spinach. Other good sources include broccoli, brussels sprouts, and cabbage. (If you’re on blood thinners, check with your doctor before increasing your greens as they can thin the blood.)
While you’re at it, other ways to grow NEW brain cells include engaging in healthy habits like exercising, eating a healthy diet, meditating, and learning something new.
P.S. Is this bad habit shrinking your brain?!
View Sources
Zheng, T., Marschall, S., Weinberg, J., Fu, X., Tarr, A., Shukitt-Hale, B., & Booth, S. L. (2025). Low Vitamin K Intake Impairs Cognition, Neurogenesis, and Elevates Neuroinflammation in C57BL/6 Mice. The Journal of Nutrition.
