Vitamin K | Community Health

Vitamin K, a fat-soluble nutrient discovered in 1939 by Danish scientist Henrik Dam, is essential for blood clotting and bone health. Found in leafy greens, fermented foods, and animal products, it activates Gla proteins that bind calcium. Deficiency, linked to 10% of global anemia cases, causes uncontrolled bleeding and osteoporosis. Modern research highlights its role in cardiovascular health, with the WHO recommending 55-75 mcg daily. Controversies persist over optimal intake and supplementation efficacy.