Answer: vitamin K
Step-by-step explanation:
Vitamin D, B6 and vitamin A are having similar absorption in the human body and also they are similary transported in the body.
At the other side, vitamin K is absorbed by enterocytes of the small inestine. When it comes to this vitamin, there are dietary fats that are enhancing absorption of this vitamin.
Some bacteria can synthesize vitamin K2, but not vitamin K1.