Effect of vitamin K supplementation on anthropometric parameters and adipokine levels – a systematic review

Vitamin K and anthropometric parameters

  • Małgorzata Jamka Department of Pediatric Gastroenterology and Metabolic Diseases, Poznan University of Medical Sciences, Poznan, Poland
  • Harald Walach Department of Pediatric Gastroenterology and Metabolic Diseases, Poznan University of Medical Sciences, Poznan, Poland
  • Magdalena Hołubiec Department of Pediatric Gastroenterology and Metabolic Diseases, Poznan University of Medical Sciences, Poznan, Poland
  • Maria Wasiewicz Department of Pediatric Gastroenterology and Metabolic Diseases, Poznań University of Medical Sciences
  • Jarosław Walkowiak
Keywords: vitamin K, dietary supplements, body weight, leptin, adiponectin

Abstract

Background: The aim of this systematic review was to assess the effect of vitamin K supplementation on anthropometric parameters and adipokine levels in adults. Methods: Four databases (PubMed, Web of Sciences, Scopus and the Cochrane Library) were searched to select studies in which the effect of vitamin K supplementation on body weight, body mass index (BMI), fat mass, leptin and adiponectin levels were assessed. Results: We identified nine studies that included a total of 542 subjects. Vitamin K supplementation did not influence body weight, BMI and percentage of fat mass. In addition, the effect of vitamin K supplementation on adipokines levels was equivocal. Conclusions: Vitamin K supplementation did not affect anthropometric parameters and adipokines levels. Nevertheless, further studies are needed to clarify the effect of vitamin K supplementation on these parameters in adults.