Quick answer: Vitamin D3 and K2 are taken together because they work as a team. D3 helps your body absorb calcium, and K2 helps direct that calcium toward your bones — supporting bone strength and cardiovascular health at the same time. BPI Sports Mega Vitamin D3 + K2 delivers 5,000 IU (125 mcg) of D3 and 180 mcg of K2 (MK-7) per tablet, using Cyclosome® technology for efficient absorption.*
What are Vitamin D3 and Vitamin K2?
Both are fat-soluble vitamins that play important roles in how your body uses calcium.
- Vitamin D3 (cholecalciferol) is the form your skin produces from sunlight. It supports healthy calcium absorption, immune function, and overall well-being.*
- Vitamin K2 (as MK-7) helps direct calcium toward the bones where it's needed, and supports cardiovascular health.*
Why take Vitamin D3 with K2?
The core idea: D3 helps you absorb calcium, and K2 helps you use it properly. Pairing them supports both sides of the process — which is why the two are so often combined. Together, they support:*
- Bone density and strength*
- Healthy calcium absorption and immune function*
- Cardiovascular health*
Who should consider a D3 + K2 supplement?
Vitamin D is called the "sunshine vitamin" because your body makes it from sun exposure. But indoor work, sunscreen, northern climates, and short winter days mean many adults get limited sun. A D3 + K2 supplement is designed for adults with limited sun exposure, anyone focused on long-term bone health, and active people supporting daily wellness.
How much do you need?
BPI Sports Mega Vitamin D3 + K2 provides a robust 5,000 IU (125 mcg) of Vitamin D3 and 180 mcg of Vitamin K2 (MK-7) per tablet. It also features Cyclosome® technology, designed to support efficient nutrient utilization. The MK-7 form of K2 stays active in the body longer than shorter-chain versions.*
When and how to take D3 + K2
Because D3 and K2 are fat-soluble, they absorb best with food. The suggested use is to take one (1) tablet one to two times daily, preferably with food.
How to choose a supplement
Look for both nutrients together, the MK-7 form of K2, and enough servings (BPI Sports offers 120 servings). BPI Sports Mega Vitamin D3 + K2 combines both in one daily tablet to support bone strength, calcium absorption, and cardiovascular health.*
Frequently asked questions
Why is Vitamin K2 taken with D3?
D3 supports calcium absorption, while K2 helps direct calcium toward the bones. Pairing them means you support both sides of the process rather than just one.*
What does Vitamin D3 + K2 do?
Together they support bone density and strength, healthy calcium absorption and immune function, and cardiovascular health.*
When should I take Vitamin D3 + K2?
Take one tablet one to two times daily, preferably with food, since both are fat-soluble vitamins that absorb best alongside dietary fat.
How much D3 and K2 are in each serving?
Each tablet provides 5,000 IU (125 mcg) of Vitamin D3 and 180 mcg of Vitamin K2 as MK-7, with Cyclosome® technology for efficient absorption.
What is MK-7?
MK-7 (menaquinone-7) is a long-acting form of vitamin K2 that stays active in the body longer than shorter-chain forms — the preferred form in quality D3 + K2 formulas.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.