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Role of Vitamin K2 in the Body
Vitamin K2 (menaquinone) is a fat-soluble vitamin that plays a crucial role in bone health, cardiovascular health, and calcium metabolism. It is distinct from Vitamin K1 (phylloquinone), which is primarily involved in blood clotting.
Key Functions of Vitamin K2
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Calcium Regulation & Bone Health
- Activates osteocalcin, a protein that helps bind calcium to bones, making them stronger.
- Reduces the risk of osteoporosis and fractures, especially in older adults.
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Cardiovascular Health
- Activates Matrix Gla Protein (MGP), which prevents calcium from depositing in blood vessels.
- Helps reduce arterial calcification, lowering the risk of heart disease.
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Blood Clotting (Indirectly)
- While Vitamin K1 is the main player in clotting, K2 also contributes by activating clotting proteins.
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Dental Health
- Supports the remineralization of teeth by activating osteocalcin and regulating calcium.
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Brain Health & Neuroprotection
- Some studies suggest Vitamin K2 reduces oxidative stress and may help in preventing neurodegenerative diseases like Alzheimer’s.
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Hormonal Balance
- May play a role in testosterone production and insulin sensitivity, benefiting metabolism and energy levels.
Sources of Vitamin K2
- Fermented Foods (e.g., natto, sauerkraut, fermented cheeses)
- Animal Products (e.g., egg yolks, liver, butter, and meats from grass-fed animals)
- Supplements (e.g., MK-4 and MK-7 forms, with MK-7 having a longer half-life in the body)
Vitamin K2 Deficiency Risks
- Increased risk of osteoporosis and fractures
- Higher likelihood of arterial calcification and heart disease
- Poor dental health and increased cavities
Vitamin K2 & Vitamin D3 Synergy
- Vitamin D3 increases calcium absorption, but Vitamin K2 directs calcium to bones instead of arteries.
- Supplementing both together is often recommended for bone and heart health.
Would you like recommendations on supplements or specific health conditions?
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