Vitamin K is a nutrient that’s essential for blood clotting and also plays a role in bone health. Most people can meet their needs through food, but it’s worth knowing what it does and where to find it.
How much do you need?
General guidance suggests 90-120 mcg for most adults per day, though individual needs can vary based on age, sex, and health status. These figures are population-level guidelines, not a personal prescription.
Food sources
- Leafy greens like kale, spinach, and collards
- Broccoli and brussels sprouts
- Vegetable oils
Worth knowing
People taking blood-thinning medication are often advised to keep their vitamin k intake consistent — check with a healthcare provider if this applies to you.
If you’re concerned about whether you’re getting enough of this nutrient, a blood test and conversation with a healthcare provider is the most reliable way to know — general food-based guidance like this is educational, not a personal diagnosis.
