Vitamin K: Key to Protecting the Aging Brain
In a groundbreaking study, researchers from the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University have uncovered that vitamin K, commonly associated with blood clotting, plays a crucial role in maintaining brain health, especially as we age. This discovery highlights the importance of a diet rich in green, leafy vegetables such as spinach, kale, and broccoli, which are abundant sources of vitamin K.
The study focused on the hippocampus, a brain region essential for learning and memory, and utilized middle-aged rodents to determine how a diet deficient in vitamin K affects cognitive function over six months. The researchers centered their analysis on menaquinone-4, a prevalent form of vitamin K in the brain. Significant alterations in both behavior and brain structure were observed in mice lacking this nutrient.