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742. Twenty-four hour urinary sodium and potassium excretion in adult population of Slovenia : results of the Manjsoli.si/2022 studySaša Kugler, Urška Blaznik, Maruša Rehberger, Metka Zaletel, Aleš Korošec, Matej Somrak, Adrijana Oblak, Igor Pravst, Maša Hribar, Anita Kušar, Jana Brguljan, Simona Gaberšček, Katja Zaletel, Ivan Eržen, 2024, original scientific article Keywords: 24-h urine, potassium, potassium intake, salt intake, sodium
Published in DiRROS: 10.11.2025; Views: 174; Downloads: 71
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743. Dietary intake of adolescents and alignment with recommendations for healthy and sustainable diets : results of the SI.Menu studyRok Poličnik, Hristo Hristov, Živa Lavriša, Jerneja Farkaš-Lainščak, Sonja Smole Možina, Barbara Koroušić-Seljak, Urška Blaznik, Matej Gregorič, Igor Pravst, 2024, original scientific article Abstract: Background: The SI.Menu study offers the latest data on the dietary intake of Slovenian adolescents aged 10 to 17. The purpose of this study is to comprehensively assess their dietary intake (energy and nutrients) and compare their food intakes with dietary recommendations for healthy and sustainable diets. Methods: The cross-sectional epidemiological dietary study SI.Menu (March 2017–April 2018) was conducted on a representative sample of Slovenian adolescents aged 10 to 17 years (n = 468) (230 males and 238 females). Data on dietary intake were gathered through two nonconsecutive 24 h recalls, in line with the European Food Safety Authority (EFSA) EU Menu methodology. The repeated 24 h Dietary Recall (HDR) and Food Propensity Questionnaire (FPQ) data were combined to determine the usual intakes of nutrients and food groups, using the Multiple Source Method (MSM) program. Results: Adolescents’ diets significantly deviate from dietary recommendations, lacking vegetables, milk and dairy products, nuts and seeds, legumes, and water, while containing excessive meat (especially red meat) and high-sugar foods. This results in insufficient intake of dietary fibre, and nutrients such as vitamin D, folate, and calcium. Conclusions: The dietary intake of Slovenian adolescents does not meet healthy and sustainable diet recommendations. This study provides an important insight into the dietary habits of Slovenian adolescents that could be useful for future public health strategies.
Keywords: nutrient intake, energy intake, dietary intake, adolescents, 24 h recall, FPQ, dietary survey, Slovenia, sustainable diet
Published in DiRROS: 10.11.2025; Views: 164; Downloads: 91
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748. Results of longitudinal Nutri-D study : factors influencing winter and summer vitamin D status in a Caucasian populationMaša Hribar, Igor Pravst, Tina Pogačnik, Katja Žmitek, 2023, original scientific article Abstract: Introduction: Inadequate vitamin D status is a worldwide public health issue. In humans, vitamin D status is affected by diet, and even more by exposure to ultraviolet B (UVB) light and consequential endogenous synthesis. Various personal and environmental factors influence endogenous synthesis. Factors affecting vitamin D status were investigated in a prospective longitudinal cohort study with a summer and winter observation period. Methods: The final sample included 292 adults, of those 111 (38%) males and 181 (62%) females, with a mean age of 38.2 (±11.8) years from Slovenia who were not supplementing vitamin D. Serum 25-hydroxyvitamin D [25(OH)D] concentrations were measured in both periods; vitamin D intake, self-reported body mass index (BMI), and protective behaviors against sun were also recorded. Other measured parameters included measurements of constitutive skin color using the objective individual typology angle (ITA), and difference in the melanin index (ΔMI) for assessment of objective sun exposure. Results: In winter a high prevalence (63.4%) of insufficient vitamin D status (< 50 nmoL/L) was observed with higher odds ratios (OR) for insufficiency in those with a higher BMI and light ITA. During summer, insufficiency prevalence was low (5.5%), but half of the participants (50.0%) had suboptimal 25(OH)D concentration (< 75 nmol/L). In summer OR for suboptimal status were higher in those with obesity, lower ΔMI, light ITA, low vitamin D intake, and protective clothing behaviors. Conclusion: Using a series of measures, we showed that vitamin D status is hugely affected by several personal factors such as BMI, ITA, vitamin D intake, ΔMI, and protective behavior against the sun. This conclusion questions the usefulness of generalized population-level recommendations since personal factors are a major predictor of vitamin D status
Keywords: 25(OH)D, deficiency, sun exposure, individual typology angle, melanin index, Caucasian
Published in DiRROS: 07.11.2025; Views: 210; Downloads: 90
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749. The effects of dietary supplementation with collagen and vitamin C and their combination with hyaluronic acid on skin density, texture and other parameters : a randomised, double-blind, placebo-controlled trialKatja Žmitek, Janko Žmitek, Hristo Hristov, Mirjam Rogl-Butina, Petra Keršmanc, Tina Pogačnik, 2024, original scientific article Published in DiRROS: 07.11.2025; Views: 279; Downloads: 102
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750. Nutrition among nursing home residents: results from the NutriCare studyŽiva Lavriša, Igor Pravst, Sanja Krušič, Neža Hren, Nadan Gregorič, Irena Hren, Barbara Koroušić-Seljak, Hristo Hristov, 2024, original scientific article Keywords: nutrition, older adults, nursing home residents, dietary intake, macronutrient intake, protein, energy, dietary fibre, a study on nutritional care
Published in DiRROS: 07.11.2025; Views: 248; Downloads: 86
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