Vitamin K (Menadione)

Vitamin K is a fat-soluble vitamin required for blood clotting and bone formation. Good food sources include avocado, liver and dark leafy greens (spinach, kale, broccoli).

As a dietary supplement for promoting bone health, vitamin K promotes the adequate deposition within the bone matrix (through the action of a bone protein called osteocalcin). Vitamin K is required for full activity of the osteocalcin protein and elderly subjects with low vitamin K intake have been shown to have sub-optimal bone density and an increased risk of osteoporosis.

Recommended Dietary Allowances: Men = 80 mcg; Women = 65 mcg

  • Involved in healthy blood clotting
  • Aids in regulating bone density and bone strength