What form of Vitamin K is in Fresh Spirulina?

Fresh spirulina is a natural, plant-based source of Vitamin K, primarily in the form of Vitamin K1 (phylloquinone). This is the same form of Vitamin K found in leafy green vegetables and is essential for blood clotting and bone metabolism. While some commercial spirulina supplements, powders, and pills may be fortified with Vitamin K2, the raw algae itself is not a significant source of it.

 

The Role and Recommendations for Vitamin K2

 

• No Official RDA: There is currently no official Recommended Daily Allowance (RDA) specifically for Vitamin K2 (menaquinone). Dietary guidelines provide an “Adequate Intake” for total Vitamin K, which is 120mcg/day for men and 90 mcg/day for women.
• Health Benefits: Emerging research highlights Vitamin K2’s crucial role in directing calcium to the bones and away from the arteries, suggesting it is vital for long-term bone and cardiovascular health.
• Expert Suggestions: Many experts and clinical studies suggest a daily intake of $100$ to $180$ mcg of the MK-7 form of Vitamin K2 may be optimal for these health benefits, an amount higher than what is needed for basic blood clotting.
• Assessing K2 Status: Directly measuring Vitamin K2 in the blood is difficult. Instead, its status is often assessed indirectly by measuring inactive proteins that rely on Vitamin K2 for activation:
  • Undercarboxylated Osteocalcin (ucOC): High levels indicate a functional deficiency related to bone health.
  • Undercarboxylated Matrix Gla Protein (ucMGP): High levels suggest an increased risk of arterial calcification.
• Dietary Sources: Good plant-based food sources of Vitamin K2 include fermented foods (like natto).

  As for supplements, we don’t agree with synthetic supplements and do not take them. We believe that everything we need can be found in nature as it is. Below is a good, natural, organic, premium plant source of Vitamin K2.