A 23-year-old male asked:
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What is the difference between vitamin K1 vitamin K2 and vitamin K3? Thanks.

1 doctor answer
Dr. Marek Bozdech
48 years experience in Hematology and Oncology
Source: There is a good summary on Wikepedia. Also nlm.nih.gov has a good summary of dietary sources.
Answered on Dec 18, 2014
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