¿La Calidad De La Alimentación En Individuos Que Realizan Actividad Física Regular, Se Ve Afecta Por Conocimientos Y Prácticas Nutricionales?: Un Estudio Transversal

Antecedentes: Este estudio tuvo como objetivo determinar la relación entre la calidad de la dieta y el conocimiento sobre nutrición (CN) y las prácticas de nutrición (PN) de las personas que realizan actividad física (AF) con regularidad. Métodos: Se estudiaron 200 individuos sanos que acudían al gimnasio al menos tres veces por semana. La calidad de la dieta se calculó utilizando el Índice de Alimentación Saludable-2015 (HEI-2015). Se utilizaron modelos de regresión lineal múltiple para evaluar las asociaciones entre las puntuaciones de CN y PN y las variables de la dieta. Resultados: De los participantes, el 47,0 % tenía CN deficiente y el 48,0 % tenía PN pobre. Se determinó que las puntuaciones de PN se asociaron significativamente con los granos integrales, los mariscos y las proteínas a base de hierbas y la calidad total de la dieta (p0,05). Un aumento en una unidad en la puntuación CN resultó en un aumento del 26,7 % en el consumo de refrigerios ajustado por edad, sexo, nivel educativo, índice de masa corporal (IMC), tabaquismo, consumo de alcohol y actividad física (AF)(p<0,001). La evaluación del puntaje PN se relacionó con las comidas principales (β=0,065±0,013; IC 95% 0,04-0,09; p<0,001), consumo de refrigerios (β=0,029±0,014, IC 95% 0,01-0,06; p<0,05) y la calidad total de la dieta (β=0,894±0,329; IC95% 0,24-1,54; p<0,05). Además, alrededor del 17% de la variabilidad en la puntuación PN podría explicarse por las puntuaciones CN. Conclusiones: CN elevada se asoció con un aumento en las puntuaciones de PN e indirectamente con un aumento en la calidad de la dieta. Para ver los efectos beneficiosos de la AF en la salud, las personas deben apoyarse en una dieta saludable, aumentando su CN.

Background: This study aimed to determine the relationship between diet quality and nutrition knowledge (CN) and nutrition practices (NP) of people who perform physical activity (PA) regularly. Methods: Two hundred healthy individuals who attended the gym at least three times a week were studied. The quality of the diet is calculated using the Healthy Eating Index-2015 (HEI-2015). Linear regression models were used multiplex to assess associations between NC and PN scores and dietary variables. Results: Of the participants, 47.0% had poor NK and 48.0% were found to have poor NPs.It was determined that NP scores were significantly associated with whole grains, seafood, and herbal proteins and total diet quality (p0.05). A one-unit increase in the NK score resulted in a 26.7% increase in the consumption of snack meals adjusted for age, gender, educational level, body mass index(BMI), smoking status, alcohol consumption, and physical activity(PA)(p< 0.001). Assessment of the NP score was related to the main meals (β=0.065±0.013; 95%CI 0.04-0.09; p<0.001), consumption of snack meals (β=0.029±0.014, 95%CI 0.01-0.06; p<0.05), and total diet quality(β=0.894±0.329; 95%CI 0.24-1.54; p<0.05). Moreover, about 17% of the variability in the NP score could be explained by the NK scores. Conclusions: Elevated NK was associated with an increase in the NP scores and indirectly with an increase in diet quality. In order to see the beneficial effects of PA on health, individuals should be supported by a healthy diet, by increasing their NK.

A cross-sectional evaluation of the relationship between social jetlag and diet quality.

The aim of this study was to compare anthropometric measures of obesity and sleep qualities in individuals with/without social jetlag (SJL). In addition, it was aimed to compare the energy, macronutrient intake and diet qualities of individuals with/without SJL during school and non-school days. This study comprised 710 university students with mean age 21.58 ± 1.41 years. The presence of SJL was acknowledged if there was a difference of more than 1 hour between the middle of sleep time on school day and on non-school day. While the physical activity levels (PALs) of the individuals were determined with a 24-hour physical activity record, measurements such as waist circumference, neck circumference and body mass index were recorded for anthropometric measurements. Pittsburgh Sleep Quality Index was used to determine the sleep quality of the individuals. Energy, macronutrients intake, and diet quality were calculated from the 24-h dietary recall of the individuals, and recorded for the school days and non-school days. In this study, 76% of the individuals (n = 542) were determined as exposed to SJL. Although there was no significant difference in their PALs, individuals with SJL had a higher waist (p < .05) and neck (p < .05) circumference, as well as higher body mass index (p < .05). Individuals with SJL were found to have significantly poor sleep quality (OR:1.109, p < .031) and sleep latency (OR:1.130, p < .001) after adjustment for confounding factors. When compared to school days, in the individuals with SJL, energy (p < .001), fat (p < .001), saturated fatty acids (SFA) (p < .001), and mono unsaturated fatty acids (MUFA) (p < .001) were significantly increased; however, fiber intake (p < .001) was significantly reduced on non-school days. Although there was no significant difference in the diet quality scores between the groups on the school days, the diet quality of the individuals without SJL on non-school days was increased significantly (p < .05). In conclusion, SJL was associated with sleep loss, increased body mass index, and lowered diet quality in university students.

Do sleep quality and caffeine consumption mediate the relationship between late chronotype and body mass index?

AIM: To determine the role of sleep quality and caffeinated beverage consumption in the effect of late chronotype on body mass index (BMI). MATERIALS AND METHODS: The study consisted of a total of 661 healthy university students with a mean age of 21.4 ± 1.38 years. Within the scope of the study, The Morningness-Eveningness Questionnaire (MEQ) was used to determine the chronotypes of individuals, the Pittsburgh Sleep Quality Index (PSQI) was used to determine sleep quality, and a 24 h physical activity record was taken to determine physical activity levels. The caffeine intake of the individuals was determined using a food frequency questionnaire for the intake of caffeinated food and beverages. The role of mediators in the effect of late chronotype on BMI was evaluated via multiple mediation analysis. RESULTS: In this study, evening-type individuals had higher daily caffeine intake, worse sleep quality (P < 0.001), and higher BMI (P < 0.05). When the effect of mediators was taken into account, the negative relationship between the chronotype score and BMI was maintained (ß = -0.109, 95% CI (-0.194, -0.021), P < 0.05). Decreased sleep quality had a mediated effect in this relationship [ß = -0.208, 95% CI (-0.275, -0.119)], and caffeinated beverage consumption was found to have no mediator function (ß = 0.040 95% CI (-0.050, 0.108), P > 0.05). CONCLUSION: To conclude, eveningness chronotype had an effect on higher levels of caffeinated beverage consumption, lower sleep quality, and increased BMI. Chronotype, sleep quality, and caffeinated beverage consumption should be taken into account in studies examining the relationship between circadian rhythm and obesity.

Traditional plain yogurt: a therapeutic food for metabolic syndrome?

Dairy products have an important role in a healthy diet due to their high-quality protein and rich micronutrients. Yogurt, a fermented milk product, has a similar composition to milk but is a more concentrated product in terms of group B vitamins, minerals, and proteins. It is known that bioactive metabolites and live enzymes that occur by fermentation and digestion, affect the health positively by improving gut microbiota. In recent years, the prevalence of metabolic syndrome, which threatens public health, is increasing rapidly. As with other noninfectious diseases, the diet has an important effect on the prevention and treatment of metabolic syndrome. It has been demonstrated that yogurt has a high-quality amino acid pattern, reduces energy intake by stimulating satiety, and regulates blood glucose level. In addition to the rich protein variety, yogurt also contains peptides that positively affect blood pressure. Unlike milk, increased acidity during the fermentation of yogurt positively affects calcium absorption. Calcium plays an important role in the control of blood glucose and energy metabolism through insulin-dependent and non-insulin-dependent routes. In addition to reducing inflammation, calcium has a positive effect on the regulation of the blood lipid profile by increasing fecal fat excretion. There are many lipid and lipoid nutrients such as saturated fatty acids, phospholipids, sphingolipids, and conjugated linoleic acid that may affect the blood lipid profile in yogurt positively or negatively. There are seen very few randomized controlled studies that are focused on the relationship between yogurt and metabolic syndrome, and these are based on contradictory results. In this review, based on the clinical studies conducted to date, and the nutrient content of yogurt, possible mechanisms of these contradictory results are investigated.

Gluten-Free Casein-Free Diet for Autism Spectrum Disorders: Can It Be Effective in Solving Behavioural and Gastrointestinal Problems?

Autism spectrum disorder [ASD] is characterized by deficits in communication and social interactions combined with repetitive and restricted patterns of behaviors. Bidirectional changes in brain-gut microbiota are known to be responsible for the pathophysiology of many brain-related disorders, such as autism, as well as well-known gastrointestinal diseases, including gut disorders. Imbalance in the composition of gut microbiota is frequently observed in individuals with ASD. It is therefore believed that this imbalance is significant in the frequent occurrence of gastrointestinal symptoms. The integrity of the intestinal barrier and the blood-brain barrier [BBB] in individuals with ASD is affected. Incompletely digested peptides, toxins, and proinflammatory cytokines cross the BBB by entering the bloodstream and reach the central nervous system. As a result of the accumulation of these elements, brain function is adversely affected. It is hypothesized that incompletely digested peptides acting as opioid agonists reduce pain sensitivity and increase the severity of autism-specific behaviors. However, it is not known exactly how opioid peptides trigger ASD symptoms after they reach the brain. Diet therapies, especially elimination diets, are considered to be an alternative treatment to prevent this condition. Gluten-free casein-free [GFCF] diet is an elimination diet that involves the removal of certain proteins from the normal diet, such as gluten and casein. However, studies that demonstrate the beneficial effects of the GFCF diet on ASD patients and explain its mechanism is limited, which supports the opioid theory. This review aims to investigate the gastrointestinal and behavioral problems that are frequently observed in ASD, the possible action mechanisms of GFCF diets, and the efficacy of these elimination diets.