Seeking Health Vitamin D3/K2 Drops provides cholecalciferol (D3) and menaquinone-7 (MK-7, the most bioactive K2 form) in liquid drop format for precise, flexible dosing. D3 and K2 work synergistically — D3 enhances calcium absorption while K2 directs calcium to bones and teeth rather than soft tissues and arteries.

Frequently Asked Questions

Why combine vitamin D3 with K2?

Vitamin D3 significantly increases calcium absorption from the gut. Without sufficient vitamin K2, this extra calcium can deposit in soft tissues and arteries rather than bones. K2 (as MK-7) activates proteins that direct calcium to the skeleton where it is needed.

What is the difference between K1 and K2?

Vitamin K1 is primarily involved in blood clotting. Vitamin K2 (particularly MK-7) specifically activates proteins that direct calcium to bones and prevent arterial calcification. K2 MK-7 has a long half-life allowing once-daily dosing.

How much vitamin D3 do I need?

Optimal vitamin D levels vary by individual. Testing serum 25-OH vitamin D is strongly recommended before supplementing. Most adults need between 1,000-5,000 IU daily to maintain optimal levels — consult your healthcare professional.

Who is at risk of vitamin D deficiency?

Those with limited sun exposure, living at high latitudes (including New Zealand in winter), older adults, people with dark skin, those who are overweight, and those with fat malabsorption conditions are at highest risk.