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Flavonoids intake among Polish and Spanish students

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Background. Flavonoids are a group of bioactive compounds that are extensively found in foodstuffs of plant origin. Their regular consumption plays an important role in the prevention of degenerative diseases, particularly cardiovascular disease, and cancer. Objective. The purpose of the study was to estimate dietary flavonoid intake among Polish and Spanish students and to establish the main dietary sources of flavonoids. Material and Methods. This study included 91 Polish and 60 Spanish students. Dietary data were collected using a food frequency questionnaire. The dietary USDA Database for the flavonoid content of selected foods was used to calculate daily and weekly flavonoid intakes by the subjects. Results. The average flavonoid consumption in the Polish students was 801 mg/day, and in Spanish students 297 mg/day. Food categories such as beverages, vegetables and fruits were found to be significant sources of flavonoids, of which tea, oranges, orange juice, dried parsley and oregano were the main contributors among Polish students and oranges, tea, chickpeas, orange juice and dried parsley were the main sources of flavonoids among Spanish students. Conclusions. Flavonoid consumption in Polish students was more than two times higher than in Spanish students. Compared to other population studies consumption of flavonoids in both students groups was adequate.
The aim of the study was to estimate the dietary intake of benzoic acid (E 210) by elderly persons aged over 65 years in Poland and the assessment of risk for human health resulting from the intake of this food additive, expressed as percent of acceptable daily intake (ADI). Data on food consumption was collected in 2000 under the FAO project "Household Food Consumption and Anthropometric Survey". The maximum permitted level of E 210 usage was taken into consideration according to the Polish regulation. On the basis of the obtained results it was found that the average intake of benzoic acid as food additive by surveyed group does not present potential risk for human health hazard. Nevertheless the maximum content of E 210 in the diets was close to the ADI or in the group of women slightly exceeded the ADI.
Background. An adequately balanced daily food rations (DFR) providing the organism with a sufficient amount of energy and nutrients, including minerals, is particularly important in infanthood and early childhood due to the child’s intensive physical, intellectual and motoric development. Objective. The aim of this study was to evaluation the supply of energy, nutrients and vitamins in daily food rations of children fed at home and in nursery schools. Material and Methods. 75 children aged 1-4 years were the research subjects. They were divided into three age subgroups: 12-24-month-olds, 25-36-month-olds and 37-48-month-olds. The daily consumption of energy and vitamins was assessed by means of a 7-day 24-hour nutritional interview made with current note taking and by means of a computer database (Dietetyk 2). Significant differences in the content of energy, nutrients and vitamins in the DFR were investigated using the two-way analysis of variance (Statistica 10.0) at significance level p≤0.05. Results. Neither the children’s sex nor age had influence on the intake of energy and macronutrients. Apart from the amount of energy (68-101.8% RDA) and proteins (183-288% RDA) these values were generally normal, but they had influence on the content of vitamins in the DFR. The DFR was characterised by generally excessive content of vitamins A, B2, B6 and B12. However, in comparison with the RDA the intake was significantly higher in the DFR of the youngest children (12-24 months old). In the group aged 37-48 months there were significantly higher values in the intake of vitamins B2 (317% vs 137% RDA) and B6 (334% vs 147% RDA). On the other hand, in comparison with the RDA, the DFR provided too small amounts of vitamins D, E, folates and vitamin C. The DFR of the youngest children (12-24 months old) contained significantly greater amounts of vitamins: D (41.3% vs 16.2% RDA), E (83.6% vs 63.5% RDA) and C (102.0% vs 48.6% RDA), as compared with the children aged 37-48 months. Only the content of vitamins B1 and PP in the children’s DFR was similar or slightly greater than the RDA. Conclusions. The intake of energy in the DFR of the children aged 1-4 years was generally comparable, but in the children aged 37-48 months it did not satisfy the daily demand. In all the age groups under study the supply of macronutrients satisfied about 100% of the demand, whereas the supply of protein and sucrose was excessive. The children aged 12-24 months consumed more vitamins D, E, B2, PP, B6, B12, C than the children aged 37-48 months. The supply of vitamins D, E, C and folates was too low, whereas the consumption of vitamins: B2, B6 and B12 exceeded the recommended daily intake.
Background. A great variety of dietary supplements and fortified products, containing folic acid, are widely available to satisfy the market demand for supplementing the diet with this vitamin. Objective. To assess folic acid intake from dietary supplements and fortified products in students. Materials and methods. The study was performed between October 2010-April 2011 on 314 university students aged 19- 34 years, excluding pregnant or lactating women. Self-administered questionnaire was used to collect information about health, lifestyle and use of dietary supplements during previous month (frequency and doses) and frequency and portion of the fortified products consumed. Results. Diets were supplemented by folic acid by almost 13% of respondents; the average intake was 148 ± 99.7 μg/person/ day, (range 10-400 μg). Products fortified with this vitamin were used by 89% students with an average intake of folic acid 83.7 ± 101 μg/person/day, (range 0.3-660 μg); about a quarter of these subjects were however unaware that they were consuming fortified products. Both product types were used together by 11% students. Among these subjects the average folic acid intake was the highest (233 ± 151 μg/person/day, range 12.3–678 μg); with 66% originating from supplements and 34% from fortified products. There were no instances of folic acid being consumed above the tolerable upper intake level (UL), of 1000 μg/day. Conclusions. It is necessary to warn the public that overconsumption of folic acid, (through dietary supplements, enriched food), may be hazardous to health, since many people combine such multiple products.
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Background. Energy drinks are intended for people who work hard, both physically and mentally, particularly young people engaged in an active lifestyle. Objective. To assess the intake of energy drinks in a student group, during examinations and throughout an academic year. Materials and methods. A survey was performed on 92 students attending the Faculty of Human Nutrition and Consumer Sciences (Warsaw University of Life Sciences - WULS) and those from the Faculty of Physical Education (University of Physical Education - UPE) in Warsaw. Results. Students consumed many more energy drinks during examinations (1424±1577 ml/week) than during the academic year (441±579 ml/week). About 30% more subjects from UPE drank such drinks, throughout both examinations and the academic year, compared to those from WULS. On average, most students drunk less than one can per day. During exams, only 49% students consumed an average of less than 125 ml of energy drinks per day, (WULS; 55% and UPE; 46%), whereas this rose to 84% during the academic year (WULS; 91% and UPA; 80%). The most popular brands were Tiger, Red Bull and Burn. Conclusions. It is important that due care and attention is exercised in consuming high amounts of energy drinks as they contain bioactive substances, including caffeine, inositol, taurine, glucuronolactone and vitamins of the group B. These all have specific effects on the body and can be a cause for concern if their intake is high.
Background. Concurrent use of dietary supplements and drugs may result in complications of pharmacotherapy due to possible interactions between their ingredients. Objectives. The aim of the survey was to estimate the intake of dietary supplements in a group of women over 50 and to analyse the risk of interactions between the ingredients of dietary supplements and drugs taken by the women. Material and Methods. The study was carried out among 146 women over 50 years of age. Questionnaire included detailed questions on the type of prescription drugs, OTC (over-the-counter) drugs, and dietary supplements taken. The risk of interactions was determined on the basis of chemical composition of the drugs and supplements specified by the manufacturer, by comparing the obtained data with literature reports on known interactions. Results. The analysis has shown that 88.4% of respondents constantly took prescription drugs, 44.5% of them took OTC drugs, and 66.4% of respondents took dietary supplements throughout the survey period. It has been found that 71.3% of surveyed women taking prescription drugs, took dietary supplements as well. Among women taking supplements and drugs, 36.9% of respondents were taking them concurrently, 60.9% kept such an interval, but only 21.8% of them waited for at least two hours. It has been found that the drug-supplement interactions might occur in 35.8% women under the survey. Conclusions. The analysis of the obtained results has revealed that taking dietary supplements by the group under survey was frequent, and the risk of interactions between dietary supplements and drugs was significant. It is recommended that doctors ask their patients about taken supplements during regular check-ups, and inform them about possible interactions between dietary supplements and drugs. Moreover, appropriate would be to change the labelling of dietary supplements, so that the packaging provides information on possible interactions between their ingredients and drugs.
Background. Glycemic Load (GL) is one of the indicators that can be used to assess the nutritional value of the diet. The results of numerous studies have shown that high glycemic index and/or high GL diets were associated with increased risk for type 2 diabetes, cardiovascular disease and cancer. Objectives. The aim of the study was to evaluate dietary GL, intake of food products which are source of carbohydrates and contribution of particular carbohydrates in students’ diets. Material and Methods. The study group consisted of 140 female students from Wroclaw (Poland) aged 21±1.6 years. The dietary assessment was performed using food frequency-questionnaire. The GL of daily food ration (DFR) was considered low for values <80 g, medium for values between 80-120 g and high for values >120 g. Results. The mean GL of the diets was 120.7±42 g. DFR of 12.1% of the students had low GL, 46.6% - medium, and 39.3% - high. Diets in the 4th quartile of GL were characterized by the highest energy value, total carbohydrate, sucrose, starch and fiber content and energy contribution from carbohydrates when compared with lower quartiles. Higher percentage of energy from protein and fats in the diets was related with lower dietary GL. The highest correlation coefficient between GL and weight of the consumed food was observed for sweets (r=0.67), cereal products (r=0.52), juices and sweetened beverages (r=0.50), vegetables (r=0.45) and fruits (r=0.44). In the study, cereal products, fruits, sweets, vegetables and juices and sweetened beverages consumed by the female subjects constituted respectively 26.6%, 12.8%, 11.4%, 9.1% and 8.8% of the total dietary GL. Conclusions. Lower dietary GL in the female students participating in the study can be achieved by limiting the intake of sweets and sweet beverages as well as consuming cereal products with a low GI.
The studies on boron concentrations were carried out on the samples collected from the groundwater intakes located in Northern Poland in the Lower Vistula Valley and in the Starogard Lakeland with diversified hydro-geological conditions and depths. The 57 samples of water for assays were collected from the following intakes: Tczew “Park” and Tczew “Motława”, Gniew, Wielkie Walichnowy, Małe Walichnowy, and Pelplin. The deepest drillings extended to 180 m (cretaceous stages), out of which 20% comprised quaternary formations up to 123 m deep. The analysis of water samples in these regions was performed from 2009-2011. The geological architecture of these areas was identified based on the legal documentation on water utilization submitted by the operators of the water intakes. The Polish sanitary regulations specify that the maximum content of boron in drinking water is 1.0 mg dm-3. That it was found in the waters mesoregion Starogard Lakeland may be assumed to be good in the context of chemical status, because in all of the 24 water samples tested, the boron concentration did not exceed the threshold value. In the Lower Vistula Valley mesoregion in 17 samples out of 33 tested, the level of boron exceeded 1.0 mg dm-3, which means that prior to consumption these waters require treatment to reduce the concentration of this element to the permissible limits. Slightly higher concentrations of boron (on average 1.63 mg dm-3) were detected in water deposited in the cretaceous formations situated in Wielkie Wachlinowy and Małe Wachlinowy. It was also found that the content of boron in groundwater depended on the nature of geological layers from which the tested water samples were collected. The statistical analysis demonstrates that the aquifer stages exerted a significant impact on the content of boron in the tested water samples and the differences between them are significant.
The aim of this study was to determine effects of genotype and selected environmental factors on colostrum production, intake, and efficiency in the cattle. The investigations were conducted on 67 dam-calf pairs. All cows were of Polish Holstein-Friesian breed, the Black-and-White variety (PHF-HO), whereas calves were sired by bulls of the following breeds: PHF-HO, Polish Holstein-Friesian of the Red-and-White variety (PHF-RW), Jersey (JE), Montbéliarde (MB) and Limousine (LI). The colostrum was collected from cows and offered to calves "from bucket" thrice a day. The amount of produced colostrum considerably exceeded the ability of its consumption by calves. Low share of HF genes in the cow, older cow's age and calving in the period from January to April appeared to be favorable factors for colostrum production. Calves born to cows with low HF gene share drank more colostrum than calves originating from cows with higher gene share of this breed. Crosses with JE drank the highest amount of the colostrum in relation to body weight, while MB-sired calves drank the highest amount in absolute terms. Colostrum intake was positively correlated with the dam's age. Furthermore, it was shown that in case of the first colostrum intake the most favorable period was from May to September, while in cases of total intake in the first day of life and mean intake in the first 5 days of life it was the period from January to April. Crosses with JE were characterized by extremely high use of colostrum per unit of body weight gain.
Background. Tea is a very popular drink throughout many parts of the world, that includes Poland. The tea infusion (cup of tea) itself contains phenolic compounds with anti-oxidant properties that constitute 30% of the dry mass of tea leaves responsible for a health promoting effect on the human body. Objectives. To estimate the determinants and amounts of black and green tea consumed by a selected population group, along with their polyphenols intake from tea. Material and Methods. A survey was conducted of 281 subjects in 2012 from the Mazovian region of Poland, recruited from social-networking sites which had been sent a web application questionnaire (Mini-ankiety.pl). Results. Subjects were aged 18-56 years, of whom the majority (73%) were aged 21-30 years. City dwellers constituted 86%, whilst those remaining were from small towns (14%). Black tea was drunk by 80% of whom 39% did so daily, whilst green tea was drunk by 72% of whom 17% did so daily. Determinants affecting the amounts of tea drinking were principally gender, education, place of residence and number of household members. Women significantly drank more than one cup of green tea daily compared to men. Those with a higher education significantly drank more than one cup of black tea daily compared to those with lower education levels. Homeowning subjects with 2 household members significantly drank more than one cup of green tea daily than the others. The average daily intakes of polyphenols from black tea in those who drank so regularly was 503 mg and that for green tea was 361 mg. Conclusions. The main source of tea polyphenols was found to be black tea as this was drunk more often than green tea. There is a need for promoting more green tea to be drunk as a source of polyphenols.
Background. Caffeine is a commonly found ingredient in many beverages. Its main dietary source is coffee, cola drinks and in recent years, energy drinks. Objectives. To compare the consumption of drinks containing caffeine (coffee, colas and energy drinks) and the reasons and circumstances under which they were drunk by middle school (junior high school) pupils and university students. Material and methods. Surveyed subjects were 90 middle school pupils from Warsaw and Kutno together with 100 students attending the Warsaw University of Life Sciences (SGGW). A questionnaire, designed by the authors, was used to determine the amounts, frequency and the reasons or circumstances in which coffee, colas and energy drinks were consumed. Statistics used, consisted of the Mann-Whitney U and Chi-square (χ2) tests, with significance taken as α ≤ 0.05. Results. Cola drinks were found to be the most popularly consumed beverages containing caffeine; 97% pupils and 93% students. Coffee was however drunk twice less by pupils compared to students, whilst similar amounts of energy drinks were consumed by both groups; respectively 48% and 53%. Gender differences were observed for the energy drinks with young men drinking the most. Coffee and energy drink consumption also rose with age by respectively 39% and 57%. The mean caffeine intake in pupils and students were respectively estimated to be 141 and 163 mg/day(d). The reasons why these beverages were drunk varied, from drinking coffee to keeping awake and drinking cola because of its good taste. Pupils also drank energy drinks due to its taste but students because of improved mental performance and in staying awake. Conclusions. Drinking caffeine containing drinks by adolescents can be very variable and comes from many different sources. Thus, its intakes may be very high and so require monitoring, particularly for the youngest. Further observational studies are needed to assess the consumption of energy drinks in relation to physical activity.
The objective of the tests was to make preliminary assessment of acrylamide intake from the diet in the category of children and adolescents falling into 7-18 age bracket. For the purposes of assessment the our analytical test results were used of acrylamide content in potato crisps and French fries in samples taken randomly from all over Poland, whereas the intake level was estimated on the basis of a 24-hour recalls leading by National Food and Nutrition Institute in 2000. In the population of consumers eating potato crisps and French fries the average intake of acrylamide in the population of children aged 7-13 amounted to 63.4 µg/person/day, meanwhile in adolescents population aged 14-18 - 69.5 µg/ person/day. The conversion of rest results into kg of body mass showed that acrylamide intake in the children population aged 7-13 lat was 1.78 µg per kg of body mass, whereas the acrylamide intake in adolescents population aged 14 - 18 was 1.17 µg/kg of body mass. Due to disadvantageous health effect of acrylamide it is necessary to reduce the content of this compound in diet.
Background. In many European countries a trend to eliminate milk and dairy products from everyday diet may be observed with increasing frequency. Elimination of milk and dairy products from the diet is connected with a reduced supply of calcium required for normal growth and development in children and adolescents Material and methods. The aim of the study was to assess calcium intake related with the consumption of milk and dairy products by children and adolescents aged 10-18 years in Europe, particularly Poland. Respondents came from families of a good socioeconomic position, were aware of principles of rational nutrition and could freely consume dairy products. Results. Based on conducted investigations it was found that calcium intake by respondents in Poland was 297.2 mg/day, at a European mean of 493.6 mg/day (575.2 mg/day/person S, 411.9 mg/day/person $). Calcium supply in individual countries is not correlated with the amount of consumed milk and dairy products. The biggest amounts of milk and dairy products are consumed by children and adolescents in Croatia (1396.2 g day/person), while the lowest in Germany (378.5 g/day/person). In Poland the consumption of milk and dairy products is 413.5 g/day/person. Conclusions. Conducted investigations showed a very low calcium intake in examined children and adolescents aged 10-18 years. These levels are too low, as they account for 38% daily calcium allowance recommended by WHO/FAO for this age group, amounting to 1300 mg/day/person.
Introduction and objective. Phytoestrogens are one of nutritional factors exhibiting a chemoprotective action, potentially reducing vasomotor symptoms as well as cancerous lesions. The study was ocused on an association between the consumption of phytoestrogens in the diet, blood serum cholesterol concentration and urinary estrogen metabolites levels. Materials and methods. The study was conducted on 55 women in the perimenopausal period, who were characterized by an increased risk of hormone-dependent cancer. Energy and nutritive value of food rations, and especially the level of phytoestrogen consumption in the diets in the examined population, were analyzed using the Wikt Pro computer programme. Estrogen metabolites (2OHE, 16α-OHE1) were determined from 24‑urine samples by the ELISA method. The EMR index was calculated. Plasma total cholesterol concentrations was measured. Results and conclusions. The population with a higher consumption of phytoestrogens and dietary fibre in the diet, at the simultaneous slight limitation of energy value of the food ration, is characterized by an improved blood serum cholesterol concentration and an appropriate estrogen metabolism towards a significant increase in the estrogen index for the cancer lesions in the mammary glands.
Background. Childhood is a particular period of life, when nutritional habits are emerging, so much attention should be paid to proper dietary habits, which become a nutritional pattern copied in the future. Objective. The aim of this study was to evaluate selected dietary habits and preferences in a group of children living in Krakow orphanages (supervising by the Social Welfare Centre in Krakow), by assessing the frequency of snacks and beverages consumptions as well as an intake of beverages with caffeine, alcohol and smoking cigarettes. Material and methods. Studies were performed in the years 2007-2008 in five orphanages located in Krakow. 181children, 9 to 20 yrs of age, participated in this study. Assessment of dietary habits and preferences was performed based on anonymous questionnaire which included questions about snacking frequency, favorite and most frequently drank beverages without or with caffeine, alcohol and cigarettes smoking. Results. The analysis of nutritional habits showed that the most popular high-calorie snacks were eaten by the youngest children. Children and adolescents asked for the most commonly consumed beverages indicated on fizzy drinks and fruits juice. Among the youngest children (9-12 years old), 5% reported drinking alcohol, 10% of boys smoked cigarettes, 10% of girls and 21% of boys drank coffee. Among the oldest respondents, about 35% declared drinking coffee, 39% girls and 65% boys declared smoking cigarettes, whereas drinking alcohol reported 22 and 38% subjects, respectively. Conclusions. Results obtained in this study, indicate the necessity of intervention, consisting on running training courses and workshops of the assessed population, i.e. children, adolescents and instructing their educators.
Obesity is a growing problem worldwide. The risk of the excessive body weight occurrence is a multifactorial issue. Environmental factors, lifestyle habits, diet, physical activity level, as well as genetic predisposition can increase obesity risk. One of the genes studied – the FTO gene - plays a crucial role in obesity occurrence. Individuals who carry risk alleles of specific single nucleotide polymorphisms (SNP) have a greater risk of being overweight. Recent studies revealed that specific macronutrient diet composition can influence differently on the FTO expression. The aim of this article is to review the recent literature on the topic of the FTO gene, its influence on overweight and obesity prevalence and the role of diet in modifying its impact on the risk of the excessive body weight occurrence. There are not many studies focusing on the dietary intervention influence on the FTO gene expression. As far as it has been researched it seems that the proper dietary habits can modify the FTO gene risk allele influence on obesity susceptibility.
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