It was found in Korean children that low vitamin D levels were associated with obesity and metabolic syndrome. Insufficient serum vitamin D levels in children may be a risk factor of obesity and metabolic syndrome .
The prevalence of obesity among children and adolescents has been rapidly increasing in recent years. Obese individuals are at risk for vitamin D deficiency. Those subjects with 25(OH)D deficiency were found to have greater insulin resistance. Vitamin D deficiency is common among obese children and adolescents.
Low vitamin D levels in obese individuals may accelerate the development of metabolic syndrome, type 2 diabetes mellitus, and cardiovascular disease by further increasing insulin resistance .
Vitamin D has been determined to have some effects on b cell function and insulin sensitivity, and it is known that type 2 diabetes mellitus and hyperparathyroidism can cause obesity. Vitamin D deficiency without diabetes mellitus and hyperparathyroidism may be associated with obesity and abdominal obesity .
After repeated measure analysis it was demonstrated by Park HY, et al (2012) that decreasing serum 25(OH)D levels are associated with increasing insulin resistance, increasing serum triglyceride levels and increasing blood pressure in elderly Koreans, and confirmed on the risk of ‘hypertriglyceridemia’ in vitamin D deficient subjects .
In Australian adults, lower 25(OH)D concentrations were associated with increased metabolic syndrome [MetS] risk and higher waist circumference , serum triglyceride, fasting glucose, and insulin resistance at 5 yr. Vitamin D supplementation studies are required to establish whether the link between vitamin D deficiency and MetS is causal .
Fung GJ, et al (2012) evaluated associations of dietary and supplemental vitamin D intake with the 20-y incidence of metabolic syndrome.
Data from 4727 black and white young men and women from the Coronary Artery Risk Development in Young Adults study were used to examine relations of dietary plus supplemental vitamin D intake with the incidence of metabolic syndrome (as defined by Adult Treatment Panel, third report, guidelines) and the prevalence of its components, including abdominal obesity, elevated blood pressure, and high glucose, low HDL, and high triglyceride concentrations .
In this study the dietary plus supplemental vitamin D intake was inversely related to the development of incident metabolic syndrome over 20 y of follow-up. These findings support the recommendations of the Dietary Guidelines for Americans to increase intakes of vitamin D-rich foods, such as milk and fish .
Optimal vitamin D levels are associated with reduced cardiovascular and all-cause mortality. Optimal 25(OH)D levels substantially lowered all-cause and cardiovascular disease mortality in subjects with the metabolic syndrome .
1. Goshayeshi L, Saber H, Sahebari M, Rezaieyazdi Z, Rafatpanah H, Esmaily H, Goshayeshi L. Association between metabolic syndrome, BMI, and serum vitamin D concentrations in rheumatoid arthritis. Clin Rheumatol. 2012 May 13.
5. Park HY, Lim YH, Kim JH, Bae S, Oh SY, Hong YC. Association of serum 25-hydroxyvitamin d levels with markers for metabolic syndrome in the elderly: a repeated measure analysis. J Korean Med Sci. 2012 Jun;27(6):653-60. Epub 2012 May 26.
6. Gagnon C, Lu ZX, Magliano DJ, Dunstan DW, Shaw JE, Zimmet PZ, Sikaris K, Ebeling PR, Daly RM. Low Serum 25-Hydroxyvitamin D Is Associated with Increased Risk of the Development of the Metabolic Syndrome at Five Years: Results from a National, Population-Based Prospective Study (The Australian Diabetes, Obesity and Lifestyle Study: AusDiab). J Clin Endocrinol Metab. 2012 Jun;97(6):1953-61.
7. Fung GJ, Steffen LM, Zhou X, Harnack L, Tang W, Lutsey PL, Loria CM, Reis JP, Van Horn LV. Vitamin D intake is inversely related to risk of developing metabolic syndrome in African American and white men and women over 20 y: the Coronary Artery Risk Development in Young Adults study. Am J Clin Nutr. 2012 Jul;96(1):24-9. Epub 2012 May 30.
8. Thomas GN, ó Hartaigh B, Bosch JA, Pilz S, Loerbroks A, Kleber ME, Fischer JE, Grammer TB, Böhm BO, März W. Vitamin D levels predict all-cause and cardiovascular disease mortality in subjects with the metabolic syndrome: the Ludwigshafen Risk and Cardiovascular Health (LURIC) Study. Diabetes Care. 2012 May;35(5):1158-64. Epub 2012 Mar 7.
Δρ.Δημήτριος Ν. Γκέλης
Iατρός, Ωτορινολαρυγγολόγος, Οδοντίατρος
Διδάκτωρ της Ιατρικής Σχολής του Πανεπιστημίου Αθηνών
Διεύθυνση: ΦΛΑΜΠΟΥΡΟ ΛΟΥΤΡΑΚΙΟΥ ΚΟΡΙΝΘΙΑΣ
www.gelis.gr, www.pharmagel.gr , www.orlpedia.gr , www.allergopedia.gr, d3gkelin.gr
www.vitaminb12.gr, www.zinc.gr, www.curcumin.gr