I have two bottles of Vitamin D3. One is 5000IU with and it has Vitamin K2 MK7. I take this just one 3 days a week. One other is just basic D3 but is just a little higher in dose at 10000IU without K2 in it. I randomly get this https://lorenzofculc.blogtov.com/14548345/5-tips-about-endurance-boosting-extracts-you-can-use-today