Certain vitamins, including vitamin K, are synthesised for our benefit by
- A. the villi of the small intestine
- B. bacteria living in the large intestine
- C. the pancreas
- D. the gall bladder
Explanation
The resident flora of the colon manufacture vitamin K and some B vitamins, which are absorbed there, one reason the gut microbiome matters. Human tissues cannot make vitamin K themselves.
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