Vitamin K Insufficiency in the Indian Population: Pilot Observational Epidemiology Study

BackgroundThe fat-soluble K vitamins K1 and K2 play an essential role in the blood coagulation cascade and are made available predominantly through selective dietary intakes. They are less known for their nonessential roles in a family of vitamin K–dependent proteins that pro...

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Main Authors: Rama Vaidya, Ashok D B Vaidya, Jayesh Sheth, Shashank Jadhav, Umakant Mahale, Dilip Mehta, Janusz Popko, Vladimir Badmaev, Sidney J Stohs
Format: Article
Language:English
Published: JMIR Publications 2022-02-01
Series:JMIR Public Health and Surveillance
Online Access:https://publichealth.jmir.org/2022/2/e31941
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author Rama Vaidya
Ashok D B Vaidya
Jayesh Sheth
Shashank Jadhav
Umakant Mahale
Dilip Mehta
Janusz Popko
Vladimir Badmaev
Sidney J Stohs
author_facet Rama Vaidya
Ashok D B Vaidya
Jayesh Sheth
Shashank Jadhav
Umakant Mahale
Dilip Mehta
Janusz Popko
Vladimir Badmaev
Sidney J Stohs
author_sort Rama Vaidya
collection DOAJ
description BackgroundThe fat-soluble K vitamins K1 and K2 play an essential role in the blood coagulation cascade and are made available predominantly through selective dietary intakes. They are less known for their nonessential roles in a family of vitamin K–dependent proteins that promote various functions of organs and systems in the body. A lack of vitamin K can characterize vitamin and nutritional element insufficiency, which is different from a clinically apparent vitamin deficiency. ObjectiveThis epidemiological study evaluated the nutritional status of vitamin K in a sample of the Indian population and vitamin K content in staple Indian foods. MethodsSerum levels of vitamin K1 and vitamin K2 in the form of menaquinone-7 (MK-7) were assessed via high-performance liquid chromatography coupled with fluorescence detection in 209 patients with type 2 diabetes, 50 healthy volunteers, and common staple foods in India. ResultsAfter comparing populations with high and low serum vitamin K levels from various geographical regions, our results indicated that the sample of healthy Indian individuals and the sample of Indian patients with type 2 diabetes had low (insufficient) levels of vitamin K2 (MK-7; range 0.3-0.4 ng/mL). No significant differences existed in vitamin K1–related and MK-7–related values between healthy male and female subjects, between male and female subjects with diabetes, and between the healthy sample and the sample of patients with diabetes. The staple, commonly consumed Indian foods that were tested in this study had undetectable levels of vitamin K2, while levels of vitamin K1 varied widely (range 0-37 µg/100 g). ConclusionsBased on our sample’s low serum levels of vitamin K2 (MK-7) as well as the low levels of vitamin K2 in their typical diet, we propose that the general Indian population could benefit from the consumption of vitamin K2 in the form of MK-7 supplements. Trial RegistrationClinical Trials Registry - India CTRI/2019/05/014246; http://ctri.nic.in/Clinicaltrials/showallp.php?mid1=21660&EncHid=&userName=014246; Clinical Trials Registry - India CTRI/2019/03/018278; http://ctri.nic.in/Clinicaltrials/showallp.php?mid1=32349&EncHid=&userName=018278
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spelling doaj.art-692455571c0c45b7a7d2e7ec769c2fba2023-08-28T20:42:50ZengJMIR PublicationsJMIR Public Health and Surveillance2369-29602022-02-0182e3194110.2196/31941Vitamin K Insufficiency in the Indian Population: Pilot Observational Epidemiology StudyRama Vaidyahttps://orcid.org/0000-0002-5656-4601Ashok D B Vaidyahttps://orcid.org/0000-0002-5459-9165Jayesh Shethhttps://orcid.org/0000-0001-5936-5192Shashank Jadhavhttps://orcid.org/0000-0001-7723-4110Umakant Mahalehttps://orcid.org/0000-0002-9124-8129Dilip Mehtahttps://orcid.org/0000-0003-4076-1480Janusz Popkohttps://orcid.org/0000-0002-6301-2098Vladimir Badmaevhttps://orcid.org/0000-0003-3737-2847Sidney J Stohshttps://orcid.org/0000-0001-5575-5759 BackgroundThe fat-soluble K vitamins K1 and K2 play an essential role in the blood coagulation cascade and are made available predominantly through selective dietary intakes. They are less known for their nonessential roles in a family of vitamin K–dependent proteins that promote various functions of organs and systems in the body. A lack of vitamin K can characterize vitamin and nutritional element insufficiency, which is different from a clinically apparent vitamin deficiency. ObjectiveThis epidemiological study evaluated the nutritional status of vitamin K in a sample of the Indian population and vitamin K content in staple Indian foods. MethodsSerum levels of vitamin K1 and vitamin K2 in the form of menaquinone-7 (MK-7) were assessed via high-performance liquid chromatography coupled with fluorescence detection in 209 patients with type 2 diabetes, 50 healthy volunteers, and common staple foods in India. ResultsAfter comparing populations with high and low serum vitamin K levels from various geographical regions, our results indicated that the sample of healthy Indian individuals and the sample of Indian patients with type 2 diabetes had low (insufficient) levels of vitamin K2 (MK-7; range 0.3-0.4 ng/mL). No significant differences existed in vitamin K1–related and MK-7–related values between healthy male and female subjects, between male and female subjects with diabetes, and between the healthy sample and the sample of patients with diabetes. The staple, commonly consumed Indian foods that were tested in this study had undetectable levels of vitamin K2, while levels of vitamin K1 varied widely (range 0-37 µg/100 g). ConclusionsBased on our sample’s low serum levels of vitamin K2 (MK-7) as well as the low levels of vitamin K2 in their typical diet, we propose that the general Indian population could benefit from the consumption of vitamin K2 in the form of MK-7 supplements. Trial RegistrationClinical Trials Registry - India CTRI/2019/05/014246; http://ctri.nic.in/Clinicaltrials/showallp.php?mid1=21660&EncHid=&userName=014246; Clinical Trials Registry - India CTRI/2019/03/018278; http://ctri.nic.in/Clinicaltrials/showallp.php?mid1=32349&EncHid=&userName=018278https://publichealth.jmir.org/2022/2/e31941
spellingShingle Rama Vaidya
Ashok D B Vaidya
Jayesh Sheth
Shashank Jadhav
Umakant Mahale
Dilip Mehta
Janusz Popko
Vladimir Badmaev
Sidney J Stohs
Vitamin K Insufficiency in the Indian Population: Pilot Observational Epidemiology Study
JMIR Public Health and Surveillance
title Vitamin K Insufficiency in the Indian Population: Pilot Observational Epidemiology Study
title_full Vitamin K Insufficiency in the Indian Population: Pilot Observational Epidemiology Study
title_fullStr Vitamin K Insufficiency in the Indian Population: Pilot Observational Epidemiology Study
title_full_unstemmed Vitamin K Insufficiency in the Indian Population: Pilot Observational Epidemiology Study
title_short Vitamin K Insufficiency in the Indian Population: Pilot Observational Epidemiology Study
title_sort vitamin k insufficiency in the indian population pilot observational epidemiology study
url https://publichealth.jmir.org/2022/2/e31941
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