Vitamin K2 is an essential, fat-soluble nutrient our body needs for different functions. It comes in two forms: - Vitamin K1 (phylloquinone) found in natural leafy greens, vegetables, and some plant oils - Vitamin K2 (menaquinone) found in dairy, fermented foods (such as natto), and animal products On average, about 90% of the Vitamin K consumed in our diets is K1, therefore taking a food supplement ensures we reap the benefits of this essential vitamin. It is often given to newborn babies after birth due to it's important benefits. Vitamin K supplements come in many forms including softgel capsules, liquid sprays, oil drops, powder and gummies. Our Carlyle Vitamin K2 supplement gives a high strength of 100mcg per tablet, there's not better formula out there!