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Vitamin K-absorption From Dairy

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00931437
Recruitment Status : Completed
First Posted : July 2, 2009
Last Update Posted : December 16, 2010
Information provided by:
Maastricht University Medical Center

Brief Summary:
Lactic acid bacteria produce a mixture of higher menaquinones, including menaquinone-9 (MK-9) and menaquinone-10 (MK-10). Vitamin K1 (phylloquinone) is normally present in chloroplasts in green vegetables. A new dairy product is developed containing both vitamin K1 and K2-vitamins. However, the extent to which the various forms of vitamin K are absorbed from such a mixture is not known. In this study the absorption profile of phylloquinone and menaquinones from this new dairy product containing several K-vitamins is investigated. This study describes a dietary intervention experiment for one single cocktail containing several K-vitamins as part of a dairy product.

Condition or disease Intervention/treatment Phase
Healthy Dietary Supplement: vitamin K-rich dairy product Not Applicable

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 12 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Absorption of Different Forms of Vitamin K From Dairy Products
Study Start Date : April 2009
Actual Primary Completion Date : July 2009
Actual Study Completion Date : November 2009

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Vitamin K
Drug Information available for: Menadione

Arm Intervention/treatment
Experimental: vitamin K-rich dairy product
one single intake of a dairy product containing several K-vitamins: phylloquinone, menaquinone-7,8,9-and 10.
Dietary Supplement: vitamin K-rich dairy product
several forms of vitamin K: phylloquinone, menaquinone-7,-8,-9,and -10.

Primary Outcome Measures :
  1. serum vitamin K levels: phylloquinone, menaquinone-7,-8,-9,and -10 [ Time Frame: one single intake ]

Secondary Outcome Measures :
  1. distribution of vitamin K-forms over lipoprotein fractions: triglyceride rich lipoprotein (TGRLP), intermediate-density lipoprotein (IDL), low-density lipoprotein (LDL), high density lipoprotein (HDL) as well as the lipoprotein-free fraction (LPF) [ Time Frame: one single intake ]

Information from the National Library of Medicine

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Ages Eligible for Study:   20 Years to 45 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Healthy men and women between 20 and 45 years old
  • Subjects of normal body weight and height according to BMI < 30
  • Subjects of Caucasian race
  • Subject has given written consent to take part in the study

Exclusion Criteria:

  • Subjects with (a history of) metabolic or gastrointestinal disease
  • Subjects presenting chronic degenerative and/or inflammatory disease
  • Abuse of drugs and/or alcohol
  • Subjects receiving corticoid treatment
  • Subjects using oral anticoagulants

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00931437

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VitaK BV / University of Maastricht
Maastricht, Netherlands
Sponsors and Collaborators
Maastricht University Medical Center
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Principal Investigator: Cees Vermeer, PhD VitaK / University of Maastricht
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Responsible Party: Dr. C. Vermeer, VitaK BV Identifier: NCT00931437    
Other Study ID Numbers: 08-3-086
First Posted: July 2, 2009    Key Record Dates
Last Update Posted: December 16, 2010
Last Verified: December 2010
Keywords provided by Maastricht University Medical Center:
vitamin K
Additional relevant MeSH terms:
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Vitamin K
Growth Substances
Physiological Effects of Drugs
Antifibrinolytic Agents
Fibrin Modulating Agents
Molecular Mechanisms of Pharmacological Action