OBJECTIVES: Proper eating habits ensure human health, so it is important to eat a balanced diet and learn the basics of proper eating from an early age. Adolescence is considered very important period for maintaining good health in terms of nutrition. METHODS: In the study, we monitored the eating habits of 182 adolescents aged 14-19 years with different eating habits (73 vegetarians and 109 nonvegetarians) using a questionnaire on nutrition and determination of selected blood parameters - vitamin D, iron and n-3fatty acids. RESULTS: Insufficient levels of vitamin D were determined in the whole group of adolescents, regardless of eating habits. Low iron concentrations negatively affect the biosynthesis of long-chain n-3 fatty acids, which was also reflected in our adolescents with alternative diets. CONCLUSIONS: Based on the obtained results, it is necessary to place emphasis on the composition of the diet in adolescent age.

Faculty of Nursing and Medical Professional Studies Slovak Medical University in Bratislava Bratislava Slovakia

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Biro FM, Wien M. Childhood obesity and adult morbidities. Am J Clin Nutr. 2010;91(5):1499S-1505S. DOI

Harris KM, Gordon-Larsen P, Chantala K, Udry JR. Longitudinal trends in race/ethnic disparities in leading health indicators from adolescence to young adulthood. Arch Pediatr Adolesc Med. 2006;160(1):74-81. DOI

Moreno LA, González-Gross M, Kersting M, Molnár D, de Henauw S, Beghin L, et al.; HELENA Study Group. Assessing, understanding and modifying nutritional status, eating habits and physical activity in European adolescents: the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study. Public Health Nutr. 2008 Mar;11(3):288-99. PubMed DOI

De Ridder D, Kroese F, Evers C, Adriaanse M, Gillebaart, M. Healthy diet: Health impact, prevalence, correlates and interventions. Psychol Health. 2017;32(8):907-41. DOI

Gusak MA, DellaPenna D. Improving the nutrient composition of plants to enhance human nutrition and health. Annu Rev Plant Physiol Plant Mol Biol. 1999;50:133-61. DOI

Krajčovičová-Kudláčková M. Health risk of alternative nutrition. Klin Biochem Metab. 2001;9(4):187-93. (In Slovak.)

Allen LH. Causes of vitamin B12 and folate deficiency. Food Nutr Bull. 2008;29(2 Suppl):S20-34. PubMed DOI

Gibson RS. Content and bioavailability of trace elements in vegetarian diets. Am J Clin Nutr. 1994;59(5 Suppl):1223S-32S. DOI

Leitzmann C. Vegetarian diets - what are the advantages? Forum Nutr. 2005;(57):147-56. DOI

Elmadfa I, Singer I. Vitamin B12 and homocysteine status among vegetarians: a global perspective. Am J Clin Nutr. 2009;89(5):1693S-8S. DOI

Sabaté J. The contribution of vegetarian diets to human health. Forum Nutr. 2003;56:218-20.

Craig WJ. Health effects of vegan diets. Am J Clin Nutr. 2009;89(5):1627S-33S.

Scientific Advisory Committee on Nutrition. Vitamin D and health. SACN; 2016.

Saggese G, Vierucci F, Prodam F, Cardinale F, Cetin I, Chiappini E, et al. Vitamin D in pediatric age: consensus of the Italian Pediatric Society and the Italian Society of Preventive and Social Pediatrics, jointly with the Italian Federation of Pediatricians. Ital J Pediatr. 2018;44(1):51. doi: 10.1186/s13052-018-0488-7. PubMed DOI

Charoenngam N, Holick MF. Imunologic effects of vitamin D on human health and disease. Nutrients. 2020;12(7):2097. doi: 10.3390/nu12072097. PubMed DOI

Chan J, Jaceldo-Siegl K, Fraser GE. Serum 25-hydroxyvitamin D status of vegetarians, partial vegetarians, and nonvegetarians: the Adventist Health Study-2. Am J Clin Nutr. 2009;89(5):1686S-92S. DOI

Crowe FL, Steur M, Allen NE, Appleby PN, Travis RC, Key TJ. Plasma concentrations of 25-hydroxyvitamin D in meat eaters, fish eaters, vegetarians and vegans: results from the EPIC-Oxford study. Public Health Nutr. 2011;14(2):340-6. PubMed DOI

Zimmermann MB, Hurrell RF. Nutritional iron deficiency. Lancet. 2007 Aug 11;370(9586):511-20. DOI

Slovak Food Composition Database Online [Internet]. Bratislava: National Agricultural and Food Centre; c2010 [updated 2022 Dec 19; cited 2022 Aug 25]. Available from: http://www.pbd-online.sk/.

Recommended nutrition doses for population of the Slovak republic (9th revision). Vestník MZ SR. 2015 Jun 19;63 Pt 4-5:19-28. (In Slovak.)

Lapage G, Roy CC. Direct transesterification of all classes of lipids in one step reaction. J Lipid Res. 1986;27(1):114-20. DOI

Abbaspour N, Hurrell R, Kelishadi R. Review on iron and its importance for human health. J Res Med Sci. 2014;19(2):164-74.

Hunt JR. Bioavailability of iron, zinc, and other trace minerals from vegetarian diets. Am J Clin Nutr. 2003;78(3 Suppl):633S-9S. PubMed DOI

Kris-Etherton PM, Grieger JA, Etherton TD. Dietary reference intakes for DHA and EPA. Prostaglandins Leukot Essent Fatty Acids. 2009;81(2-3):99-104. PubMed DOI

Sanders TA. DHA status of vegetarians. Prostaglandins Leukot Essent Fatty Acids. 2009;81(2-3):137-41. PubMed DOI

EFSA Panel on Dietetic Products, Nutrition and Allergies. Dietary reference values for vitamin D. EFSA J. 2016;14(10):4547. doi: 10.2903/j.efsa.2016.4547. DOI

Aswall JE. Health for all in the 21st century a policy framework for the WHO European region. Int J Occup Med Environ Health. 2000;13(1):5-13. PubMed

Misra M, Pacaud D, Petryk A, Collett-Solberg PF, Kappy M; Drug and Therapeutics Committee of the Lawson Wilkins Pediatric Endocrine Society. Vitamin D deficiency in children and its management: review of current knowledge and recommendations. Pediatrics. 2008;122(2):398-417. PubMed DOI

Saunders AV, Craig WJ, Baines SK, Posen JS. Iron and vegetarian diets. Med J Aust. 2013;199(S4):S11-6. PubMed DOI

Burns-Whitmore B, Froyen E, Heskey C, Parker T, San Pablo G. Alpha-linolenic and linoleic fatty acids in the vegan diet: do they require dietary reference intake/adequate intake special consideration? Nutrients. 2019;11(10):2365. doi: 10.3390/nu11102365. PubMed DOI