Beslenme ve Diyetetik Bölümü Koleksiyonu
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- ItemFuture Protein Sources in Sports Nutrition: Sustainable Solutions(Springer, 2026-02) Tuna, Tuğba; Ersoy, Nesli; 336342Purpose of ReviewThis review evaluates the potential of alternative protein sources, including plant-based proteins, insect proteins, mycoproteins, microalgae, and cultured meat, in meeting the increasing demand for sustainable and functional protein solutions in sports nutrition.Recent FindingsStudies indicate that alternative protein sources provide significant environmental benefits, such as reduced greenhouse gas emissions and lower water use, while delivering essential nutrients to support athletic performance and recovery. Advances in technology and production methods have further enhanced their feasibility as replacements for conventional animal-based proteins.SummaryIntegrating alternative protein sources into sports nutrition offers a dual benefit: meeting athletes' dietary requirements and supporting global sustainability goals. These protein sources pave the way for innovative, environmentally conscious dietary practices in sports nutrition, marking a pivotal shift toward a more sustainable future.
- ItemObesity and Obesity-Related Hypertension in Northern Cyprus: Findings from a Population-Based Cross-Sectional Study(Galenos, 2026-02) Berksel, Ersan; Özduran, Gülşen; 229345BACKGROUND/AIMS Obesity constitutes a chronic and multifactorial condition characterized by an excessive accumulation of adipose tissue and is linked to a wide range of comorbidities, including hypertension (HT). Its predominant cause is the disparity between caloric intake and the body’s energy utilization. As obesity rates persistently rise, the incidence of obesity-related conditions, particularly HT, is expected to increase. This study estimated the prevalence of general and abdominal obesity (AO) and obesity-related HT among adults in Northern Cyprus. MATERIALS AND METHODS In this cross-sectional observational study, data were collected between October 2023 and June 2024 from Turkish Cypriot adults aged 18-79 years residing in Northern Cyprus. RESULTS The population-level prevalences of general obesity, AO, and excess weight were 26.2%, 46.9%, and 63.2%, respectively. Obesity prevalence was higher in males (29.7%) than in females (23.1%), and excess weight affected 74.3% of males and 53.2% of females. AO was also more prevalent among males (49.6%) than among females (44.4%). The population-level prevalence of HT was 34.6% (36.1% in males, 33.1% in females). Among individuals with HT, 76.9% had obesity-related HT (77.6% among males and 76.1% among females). CONCLUSION Obesity and its associated HT are highly prevalent among adults in Northern Cyprus. With rising obesity rates, the burden of obesity-related conditions is likely to increase. Prevention strategies, alongside lifestyle interventions, anti-obesity pharmacotherapy, and metabolic surgery when appropriate, are essential for long-term control of weight and blood pressure.
- ItemEnvironmental impact of athletes’ diets greenhouse gas emissions, water footprint, and sustainability awareness(Springer, 2026-01) Acar, Selva; Tuna, Tuğba; Ersoy, Nesli; 336342This cross-sectional study evaluated the environmental impact of athletes’ dietary patterns by estimating greenhouse gas emissions (GHGE) and water footprint (WF). It also assessed knowledge, attitudes, and behaviors related to sustainable nutrition using a structured questionnaire aligned with the FAO definition of sustainable diets. Conducted between January and August 2023 in Ankara, the study included 100 elite athletes (mean age: 21.0 ± 3.3 years; 65% female) from various sports disciplines. Dietary intake was assessed using a semi-quantitative food frequency questionnaire, and GHGE and WF values were calculated based on life cycle assessment data. The mean GHGE and WF values of athletes’ diets were 3017.1 ± 1877.4 g CO₂-eq/day and 5.4 ± 3.2 mL/g, respectively. Male athletes and strength/power athletes exhibited significantly higher dietary environmental impacts than female and team sports athletes (p < 0.001 and p < 0.05, respectively). Red meat and animal protein consumption were strongly associated with higher GHGE and WF values (p < 0.001). Despite the increasing importance of sustainability, more than 90% of participants lacked accurate knowledge of sustainable nutrition. Moreover, a discrepancy was observed between athletes’ stated willingness to support environmental values and their actual food choices, indicating an intention–behavior gap. This study contributes to the limited literature by quantifying the environmental impact of athletes’ diets while concurrently examining sustainability-related behavioral factors. The findings underscore the importance of integrating sustainability principles into sports nutrition planning and education to reduce environmental impacts while maintaining performance goals.
- ItemThe Relationship Between Climate Change Awareness, Sustainable Nutrition Behaviours and Acceptability of Alternative Protein Sources in Generation Z: A Cross-Sectional Study(Wiley, 2026-01) Tuna, Tuğba; Batu, Zehra; 336342This study investigates the relationship between climate change awareness, sustainable nutrition behaviours, and the acceptability of alternative protein sources among Generation Z university students. This cross-sectional study employed a mixed-methods approach, combining structured quantitative measures and open-ended qualitative questions in a digital survey. A total of 785 university students aged 18–29 from Türkiye participated in the study. The survey included the Behavioural Scale for Sustainable Nutrition, the Global Climate Change Awareness Scale, and the Attitudes Toward Alternative Protein Sources Questionnaire. Descriptive statistics, independent t-tests, one-way ANOVA, post hoc Tukey HSD tests, and correlation analyses (Pearson/Spearman) were conducted to examine the associations between climate change awareness, sustainable nutrition behaviours, and the acceptability of alternative protein sources, including edible mushrooms, algae, flowers, grasshoppers, crickets, and cultured meat. A statistically significant but moderate positive relationship was observed between climate change awareness and sustainable nutrition behaviours, particularly in food purchasing habits. A weaker but positive association was found for food preference, food waste reduction, and seasonal and local dietary practices. Participants reported low familiarity with alternative protein sources, with the highest acceptability for edible mushrooms (74.5%), followed by edible flowers (37.8%) and cultured meat (14.4%). While greater climate change awareness was linked to a higher willingness to consume certain alternative protein sources, this did not consistently translate into broader acceptance. These findings highlight the need for targeted awareness campaigns and educational initiatives to overcome cultural barriers and food neophobia, fostering a greater acceptance of sustainable protein sources.
- ItemThe role of chronotype, sleep quality, and physical activity in food cravings: a crosssectional study(BMC, 2025-07) Tuna, Tuğba; Karaca Çelik, Kezban Esen; Çelik Kayapınar, Fatma; 336342Introduction Food cravings contribute to unhealthy eating behaviors, increased energy intake, and metabolic disturbances. However, the interplay between chronotype, sleep quality, and physical activity in shaping food cravings remains unclear. This study explores these associations in adults attending fitness centers. Methods A cross-sectional study was conducted with 201 participants (80 females, 121 males) aged 19–64 years in İzmir, Türkiye. Validated tools, including the Food Craving Questionnaire-Trait (FCQ-T), Morningness–Eveningness Questionnaire (MEQ), and Pittsburgh Sleep Quality Index (PSQI), were used to assess food cravings, chronotype, and sleep quality, respectively. Results Regular physical activity was significantly associated with lower FCQ-T scores (p < 0.05). Poor sleep quality was linked to higher food craving levels (p < 0.05). Evening chronotypes showed higher food craving scores than morning types, though this was not statistically significant (p > 0.05). However, evening chronotypes exhibited significantly poorer sleep quality (higher PSQI scores) compared to morning types (p < 0.05). Conclusion This cross-sectional study suggests that regular physical activity and good sleep quality may be associated with lower food craving levels. Although chronotype differences were observed, further research is needed to clarify the underlying mechanisms. Given the limitations of the study design and potential selection bias, causal interpretations should be approached with caution. Nevertheless, interventions focusing on improving sleep and promoting physical activity may help reduce unhealthy eating tendencies in similar populations.
