I've two bottles of Vitamin D3. A single is 5000IU with and has Vitamin K2 MK7. I take this a person 3 times per week. Another is just plain D3 but is slightly higher in dose at 10000IU without having K2 in it. I randomly choose this larger does it's https://danteqcmvd.bloginder.com/34711710/little-known-facts-about-endurance-boosting-extracts