Saturday, September 20, 2014

Q: Intestinal bacteria synthesize a large amount of Vitamin K. Taking broad spectrum antibiotics can destroy how much of that capacity?
Answer: 2/3rd
Taking broad-spectrum antibiotics can reduce vitamin K production in the gut by nearly 75% in people compared with those not taking these antibiotics.

Reference
Conly, J; Stein K (1994). "Reduction of vitamin K2 concentrations in human liver associated with the use of broad spectrum antimicrobials". Clinical and investigative medicine. M├ędecine clinique et experimentale 17 (6): 531–539.

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