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Adolescents' Level of Knowledge about Popular Diets and The Relationship Between Approaches and Emotional States, Descriptive Research

Year 2026, Volume: 2 Issue: 1, 1 - 10, 29.01.2026

Abstract

Objective: This study was conducted to determine the relationship between the level of knowledge and attitudes of adolescent students in a high school about popular diets and their emotional states.
Method: This descriptive and cross-sectional study was conducted with 100 volunteers aged 10-19 between 15 January- 15 February 2024. A questionnaire form prepared by the researchers, including questions on demographic characteristics, anthropometric measurements, eating habits, knowledge, opinions, and emotional states regarding popular diets, was applied to the participants through face-to-face interviews. Statistical analyses were performed using SPSS 27, and the significance level was accepted as p<0.05.
Results: 50.5% of the participants were female and 49.5% were male. 45.0% of the participants stated that they had researched healthy eating, and 48.0% defined popular diets as 'diets known by everyone'. The most well-known popular diet was intermittent fasting (44.0%), and 36.0% of the participants stated that they had practiced this diet before. The most common source of access to popular diets was the media (67%). While 40.0% of the participants reported not experiencing significant mood changes after dieting, 30.0% reported experiencing changes. Female students had a significantly higher level of knowledge about popular diets than male students (p<0.05).
Conclusion: It was found that adolescents are interested in healthy nutrition, intermittent fasting is the most known among popular diets, and the media is the most effective source of information. In this context, it is recommended to monitor nutritional content in the media and conduct accurate information activities for adolescents.

Ethical Statement

The research was conducted in accordance with the principles of the Declaration of Helsinki, and ethical approval was received from the Istanbul Kültür University Non-Interventional Research Ethics Committee with decision number 2024/08 dated January 11, 2024. Participation in the study was voluntary. The purpose of the study was explained to the participants, and parental consent was obtained for participants under the age of 18.

Supporting Institution

there is no

Thanks

“We would like to thank all individuals who voluntarily participated in the study and the relevant institutions that provided support during the data collection process.”

References

  • Acar, A. (2020). Bariatrik cerrahi adaylarının beslenme durumları ile popüler diyet uygulamalarının değerlendirilmesi ve BKİ ile ilişkisinin incelenmesi (Yüksek lisans tezi). Aydın Üniversitesi, İstanbul.
  • Altaş, A. (2017). Vegetarianism and veganism: Current situation in Turkey in the light of examples in the world. Journal of Tourism and Gastronomy Studies, 5(4), 403-421.
  • Aydoğdu, G. S., & Akbulut, G. (2020). Aralıklı açlık diyetleri ve düşük karbonhidratlı diyetlerin obezite tedavisindeki etkisi. Beslenme ve Diyet Dergisi, 48(1), 98-106.
  • Bayram, H. M., & Öztürkcan, A. (2024). Türkiye’de popüler diyet terimlerine gösterilen ilginin incelenmesi: Bir infodemiyoloji çalışması. Bandırma Onyedi Eylül Üniversitesi Sağlık Bilimleri ve Araştırmaları Dergisi, 6(1), 120-130.
  • Best, O., & Ban, S. (2021). Adolescence: Physical changes and neurological development. British Journal of Nursing, 30(5), 272-275.
  • Brinkworth, G. D., Buckley, J. D., Noakes, M., et al. (2009). Long-term effects of a very low-carbohydrate diet and a low-fat diet on mood and cognitive function. Archives of Internal Medicine, 169(20), 1873-1880.
  • Cabo, R., & Mattson, M. P. (2019). Effects of intermittent fasting on health, aging, and disease. New England Journal of Medicine, 381, 2541-2551.
  • D’Innocenzo, S., Biagi, C., & Lanari, M. (2019). Obesity and the Mediterranean diet: A review of evidence of the role and sustainability of the Mediterranean diet. Nutrients, 11(6), 1306.
  • Deslippe, A. L., Bergeron, C., & Cohen, T. R. (2023). Boys and girls differ in their rationale behind eating: A systematic review of intrinsic and extrinsic motivations in dietary habits across countries. Frontiers in Nutrition, 10, 1256189.
  • Dong, T. A., Sandesara, P. B., Dhindsa, D. S., et al. (2021). Intermittent fasting: A heart healthy dietary pattern? The American Journal of Medicine, 133(8), 901-907.
  • Ellul, R. D., Cordina, M., Buhagiar, A., et al. (2009). An analysis of gender differences in self-reported health, use of medicines and access to information sources about medicines among adolescents. International Journal of Adolescent Medicine and Health, 21(4), 591-600.
  • Jebeile, H., Gow, M. L., & Lister, N. B. (2019). Intermittent energy restriction is a feasible, effective, and acceptable intervention to treat adolescents with obesity. Journal of Nutrition, 149, 1189-1197.
  • Karaduman, T. (2015). Düzce’de yaşayan yetişkin bireylerin popüler diyetleri öğrendikleri kaynaklar, popüler diyetler hakkındaki bilgileri ve yanlış uygulamaları (Yüksek lisans tezi). Başkent Üniversitesi, İstanbul.
  • Kosinski, C., & Jornayvaz, F. R. (2017). Effects of ketogenic diets on cardiovascular risk factors: Evidence from animal and human studies. Nutrients, 9(5), 517.
  • Kunduraci, Y. E., & Ozbek, H. (2020). Does the energy restriction intermittent fasting diet alleviate metabolic syndrome biomarkers? A randomized controlled trial. Nutrients, 12(10), 3213.
  • Martinović, I., Kim, S. U., & Stanarević, K. S. (2023). Study of health information needs among adolescents in Croatia shows distinct gender differences in information seeking behaviour. Health Information and Libraries Journal, 40(1), 70-91.
  • Melini, V., & Melini, F. (2019). Gluten-free diet: Ga˂s and needs for a healthier diet. Nutrients, 11(1), 170.
  • Moore, H. A., & McNulty, B. (2023). Adolescent nutrition and health: Characteristics, risk factors and opportunities of an overlooked life stage. Proceedings of the Nutrition Society, 82(2), 142-156.
  • Muha, J., Schumacher, A., Campisi, S. C., & Korczak, D. J. (2024). Depression and emotional eating in children and adolescents: A systematic review and meta-analysis. Appetite, 200, 107511.
  • Navruz, S., & Tek, N. A. (2014). Yüksek proteinli diyet akımlarının vücut ağırlığının korunması ve sağlık üzerine kısa ve uzun dönemli etkileri. Gümüşhane Üniversitesi Sağlık Bilimleri Dergisi, 3(1), 656-673.
  • Obermayer, A., Tripolt, N. J., Pferschy, P. N., et al. (2023). Efficacy and safety of intermittent fasting in people with insulin-treated type 2 diabetes (InterFAST-2): A randomized controlled trial. Diabetes Care, 46(2), 463-468.
  • Partsalaki, I., Karvela, A., & Spiliotis, B. E. (2012). Metabolic impact of a ketogenic diet compared to a hypocaloric diet in obese children and adolescents. Journal of Pediatric Endocrinology and Metabolism, 25, 697-704.
  • Patterson, R. E., & Sears, D. D. (2017). Metabolic effects of intermittent fasting. Annual Review of Nutrition, 37, 371-393. Quirk, S. E., Williams, L. J., O’Neil, A., Pasco, J. A., Jacka, F. N., & Berk, M. (2013). Is there an association between diet and depression in children and adolescents? A systematic review. British Journal of Nutrition, 110(9), 1604-1614.
  • Roehl, K., & Sewak, S. L. (2017). Practice paper of the Academy of Nutrition and Dietetics: Classic and modified ketogenic diets for treatment of epilepsy. Journal of the Academy of Nutrition and Dietetics, 117(8), 1279-1292.
  • Sacks, D. (2003). Age limits and adolescents. Paediatrics & Child Health, 8(9), 577-578.
  • Sahril, N., Adnan, M. A. A., Khalil, M. K. N., Chan, Y. M., Yoga Ratnam, K. K., Lai, W. K., & Ahmad, N. A. (2023). Association of dietary behaviour and depression among adolescents in Malaysia: A cross-sectional study. Journal of Health, Population and Nutrition, 42, 133.
  • Salazar, A., Cerda, B., Henriquez, P., et al. (2022). The Mediterranean diet and the Western diet in adolescent depression. Nutrients, 14(20), 4390.
  • Schaafsma, H. N., Jantzi, H. A., & Seabrook, J. A. (2024). The impact of smartphone app-based interventions on adolescents’ dietary intake: A systematic review and evaluation of equity factor reporting in intervention studies. Nutrition Reviews, 82(4), 467-486.
  • Shriver, L. H., Dollar, J. M., Calkins, S. D., Keane, S. P., Shanahan, L., & Wideman, L. (2020). Emotional eating in adolescence: Effects of emotion regulation, weight status and negative body image. Nutrients, 13(1), 79.
  • World Health Organization. (2017). Childhood obesity surveillance initiative (COSI) 2015-2017. https://www.who.int/europe/publications/m/item/childhood-obesity-surveillance-initiative-(cosi)-factsheet.-highlights-2015-17

Adölesanların Popüler Diyetler Hakkındaki Bilgi Düzeyleri ve Yaklaşımları ile Duygu Durumları Arasındaki İlişki

Year 2026, Volume: 2 Issue: 1, 1 - 10, 29.01.2026

Abstract

Amaç: Bu çalışma, bir lisede öğrenim gören adölesan öğrencilerin popüler diyetler hakkındaki bilgi düzeyleri, yaklaşımları ve bu durumun duygu durumları ile olan ilişkisini saptamak amacıyla yürütülmüştür.
Gereç ve Yöntemler: Tanımlayıcı ve kesitsel tipteki bu araştırma, 15 Ocak-15 Şubat 2024 tarihleri arasında Bilecik'te bir lisede öğrenim gören, çalışmaya katılmaya gönüllü 10-19 yaş arası 100 adölesan ile gerçekleştirilmiştir. Veriler, araştırmacılar tarafından hazırlanan, demografik özellikler, antropometrik ölçümler, beslenme alışkanlıkları, popüler diyetlere ilişkin bilgi, tutum ve duygu durumlarını sorgulayan bir anket formu aracılığıyla yüz yüze görüşme yöntemiyle toplanmıştır. İstatistiksel analizlerde SPSS 27 programı kullanılmış, anlamlılık düzeyi p<0,05 olarak kabul edilmiştir.
Bulgular: Katılımcıların %50,5'i kız, %49,5'i erkek öğrencilerden oluşmaktadır. Katılımcıların %45'i sağlıklı beslenme konusunda araştırma yaptığını belirtirken, %48'i popüler diyetleri 'herkes tarafından bilinen diyetler' olarak tanımlamıştır. En çok bilinen popüler diyet %44 ile aralıklı oruç (IF) olup, katılımcıların %36'sı bu diyeti daha önce uyguladıklarını ifade etmiştir. Popüler diyetlere erişim kaynağı olarak en sık medya belirtilmiştir (%67). Katılımcıların %40'ı diyet sonrası belirgin bir duygu durum değişikliği yaşamadığını, %30'u ise değişiklik yaşadığını bildirmiştir. Kız öğrencilerin popüler diyetler hakkında bilgi sahibi olma oranı erkeklere göre anlamlı derecede yüksek bulunmuştur (p<0,05).
Sonuç: Adölesanların sağlıklı beslenmeye ilgi duyduğu, popüler diyetlerden en çok aralıklı orucun bilindiği ve bilgi edinmede medyanın en etkili kaynak olduğu saptanmıştır. Bu bağlamda, medyada yer alan beslenme içeriklerinin denetlenmesi ve adölesanlara yönelik doğru bilgilendirme çalışmalarının yapılması önerilmektedir.

Ethical Statement

Araştırma Helsinki Bildirgesi ilkelerine uygun olarak yürütülmüş olup, İstanbul Kültür Üniversitesi Girişimsel Olmayan Araştırmalar Etik Kurulu'nun 11 Ocak 2024 tarih ve 2024/08 sayılı kararıyla etik onayı alınmıştır. Çalışmaya katılım gönüllülük esasına dayanmaktadır. Katılımcılara çalışmanın amacı açıklanmış ve 18 yaş altı katılımcılar için ebeveyn onamı alınmıştır.

Supporting Institution

Yoktur.

Thanks

Çalışmaya gönüllü olarak katılan tüm bireylere ve veri toplama sürecinde destek veren ilgili kurumlara teşekkür ederiz.

References

  • Acar, A. (2020). Bariatrik cerrahi adaylarının beslenme durumları ile popüler diyet uygulamalarının değerlendirilmesi ve BKİ ile ilişkisinin incelenmesi (Yüksek lisans tezi). Aydın Üniversitesi, İstanbul.
  • Altaş, A. (2017). Vegetarianism and veganism: Current situation in Turkey in the light of examples in the world. Journal of Tourism and Gastronomy Studies, 5(4), 403-421.
  • Aydoğdu, G. S., & Akbulut, G. (2020). Aralıklı açlık diyetleri ve düşük karbonhidratlı diyetlerin obezite tedavisindeki etkisi. Beslenme ve Diyet Dergisi, 48(1), 98-106.
  • Bayram, H. M., & Öztürkcan, A. (2024). Türkiye’de popüler diyet terimlerine gösterilen ilginin incelenmesi: Bir infodemiyoloji çalışması. Bandırma Onyedi Eylül Üniversitesi Sağlık Bilimleri ve Araştırmaları Dergisi, 6(1), 120-130.
  • Best, O., & Ban, S. (2021). Adolescence: Physical changes and neurological development. British Journal of Nursing, 30(5), 272-275.
  • Brinkworth, G. D., Buckley, J. D., Noakes, M., et al. (2009). Long-term effects of a very low-carbohydrate diet and a low-fat diet on mood and cognitive function. Archives of Internal Medicine, 169(20), 1873-1880.
  • Cabo, R., & Mattson, M. P. (2019). Effects of intermittent fasting on health, aging, and disease. New England Journal of Medicine, 381, 2541-2551.
  • D’Innocenzo, S., Biagi, C., & Lanari, M. (2019). Obesity and the Mediterranean diet: A review of evidence of the role and sustainability of the Mediterranean diet. Nutrients, 11(6), 1306.
  • Deslippe, A. L., Bergeron, C., & Cohen, T. R. (2023). Boys and girls differ in their rationale behind eating: A systematic review of intrinsic and extrinsic motivations in dietary habits across countries. Frontiers in Nutrition, 10, 1256189.
  • Dong, T. A., Sandesara, P. B., Dhindsa, D. S., et al. (2021). Intermittent fasting: A heart healthy dietary pattern? The American Journal of Medicine, 133(8), 901-907.
  • Ellul, R. D., Cordina, M., Buhagiar, A., et al. (2009). An analysis of gender differences in self-reported health, use of medicines and access to information sources about medicines among adolescents. International Journal of Adolescent Medicine and Health, 21(4), 591-600.
  • Jebeile, H., Gow, M. L., & Lister, N. B. (2019). Intermittent energy restriction is a feasible, effective, and acceptable intervention to treat adolescents with obesity. Journal of Nutrition, 149, 1189-1197.
  • Karaduman, T. (2015). Düzce’de yaşayan yetişkin bireylerin popüler diyetleri öğrendikleri kaynaklar, popüler diyetler hakkındaki bilgileri ve yanlış uygulamaları (Yüksek lisans tezi). Başkent Üniversitesi, İstanbul.
  • Kosinski, C., & Jornayvaz, F. R. (2017). Effects of ketogenic diets on cardiovascular risk factors: Evidence from animal and human studies. Nutrients, 9(5), 517.
  • Kunduraci, Y. E., & Ozbek, H. (2020). Does the energy restriction intermittent fasting diet alleviate metabolic syndrome biomarkers? A randomized controlled trial. Nutrients, 12(10), 3213.
  • Martinović, I., Kim, S. U., & Stanarević, K. S. (2023). Study of health information needs among adolescents in Croatia shows distinct gender differences in information seeking behaviour. Health Information and Libraries Journal, 40(1), 70-91.
  • Melini, V., & Melini, F. (2019). Gluten-free diet: Ga˂s and needs for a healthier diet. Nutrients, 11(1), 170.
  • Moore, H. A., & McNulty, B. (2023). Adolescent nutrition and health: Characteristics, risk factors and opportunities of an overlooked life stage. Proceedings of the Nutrition Society, 82(2), 142-156.
  • Muha, J., Schumacher, A., Campisi, S. C., & Korczak, D. J. (2024). Depression and emotional eating in children and adolescents: A systematic review and meta-analysis. Appetite, 200, 107511.
  • Navruz, S., & Tek, N. A. (2014). Yüksek proteinli diyet akımlarının vücut ağırlığının korunması ve sağlık üzerine kısa ve uzun dönemli etkileri. Gümüşhane Üniversitesi Sağlık Bilimleri Dergisi, 3(1), 656-673.
  • Obermayer, A., Tripolt, N. J., Pferschy, P. N., et al. (2023). Efficacy and safety of intermittent fasting in people with insulin-treated type 2 diabetes (InterFAST-2): A randomized controlled trial. Diabetes Care, 46(2), 463-468.
  • Partsalaki, I., Karvela, A., & Spiliotis, B. E. (2012). Metabolic impact of a ketogenic diet compared to a hypocaloric diet in obese children and adolescents. Journal of Pediatric Endocrinology and Metabolism, 25, 697-704.
  • Patterson, R. E., & Sears, D. D. (2017). Metabolic effects of intermittent fasting. Annual Review of Nutrition, 37, 371-393. Quirk, S. E., Williams, L. J., O’Neil, A., Pasco, J. A., Jacka, F. N., & Berk, M. (2013). Is there an association between diet and depression in children and adolescents? A systematic review. British Journal of Nutrition, 110(9), 1604-1614.
  • Roehl, K., & Sewak, S. L. (2017). Practice paper of the Academy of Nutrition and Dietetics: Classic and modified ketogenic diets for treatment of epilepsy. Journal of the Academy of Nutrition and Dietetics, 117(8), 1279-1292.
  • Sacks, D. (2003). Age limits and adolescents. Paediatrics & Child Health, 8(9), 577-578.
  • Sahril, N., Adnan, M. A. A., Khalil, M. K. N., Chan, Y. M., Yoga Ratnam, K. K., Lai, W. K., & Ahmad, N. A. (2023). Association of dietary behaviour and depression among adolescents in Malaysia: A cross-sectional study. Journal of Health, Population and Nutrition, 42, 133.
  • Salazar, A., Cerda, B., Henriquez, P., et al. (2022). The Mediterranean diet and the Western diet in adolescent depression. Nutrients, 14(20), 4390.
  • Schaafsma, H. N., Jantzi, H. A., & Seabrook, J. A. (2024). The impact of smartphone app-based interventions on adolescents’ dietary intake: A systematic review and evaluation of equity factor reporting in intervention studies. Nutrition Reviews, 82(4), 467-486.
  • Shriver, L. H., Dollar, J. M., Calkins, S. D., Keane, S. P., Shanahan, L., & Wideman, L. (2020). Emotional eating in adolescence: Effects of emotion regulation, weight status and negative body image. Nutrients, 13(1), 79.
  • World Health Organization. (2017). Childhood obesity surveillance initiative (COSI) 2015-2017. https://www.who.int/europe/publications/m/item/childhood-obesity-surveillance-initiative-(cosi)-factsheet.-highlights-2015-17
There are 30 citations in total.

Details

Primary Language English
Subjects Clinical Nutrition
Journal Section Research Article
Authors

Sevil Nas

Nezihe Şengün

Submission Date November 26, 2025
Acceptance Date January 13, 2026
Publication Date January 29, 2026
Published in Issue Year 2026 Volume: 2 Issue: 1

Cite

APA Nas, S., & Şengün, N. (2026). Adolescents’ Level of Knowledge about Popular Diets and The Relationship Between Approaches and Emotional States, Descriptive Research. Northern Journal of Health Sciences, 2(1), 1-10.