Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 8

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
Introduction. Nitrates and nitrites commonly occur throughout nature as well as in foodstuffs. Their excess consumption can however pose health risks, for example, arising from methaemoglobinaemia or from the formation of N-nitrosamines. Objectives. To determine whether the levels of domestic nitrate and nitrite consumption are safe in Polish households during 2006-2012. Material and methods. Appropriate consumption data was obtained from the Central Statistical Office in Poland (GUS), whilst nitrate and nitrite intakes were estimated from nationally available data on foodstuff content taken from the literature. Results. Mean nitrate and nitrite intakes were respectively 147 mg NaNO3 and 3.26 mg NaNO2 /per person/day, corresponding to 41% and 45% of the ADI (acceptable daily intake). Statistically significant differences in intakes were observed between types of households, with the highest seen in those of retired subjects; however the ADIs were not exceeded. Conclusions. Domestic intakes of nitrates and nitrites were found to be at safe levels; nevertheless control over their intake should be maintained because of potentially adverse health threats.
Background. Vegetarian diets, by definition, are rich in vegetables and so may have high levels of nitrates, that can elicit both positive or negative effects on the human body. Exposure to nitrates can thus be potentially higher for this population group. Objective. To estimate dietary nitrates intakes in Polish vegetarians and compare these with the Polish average. Material and methods. A sample of 86 vegetarians were surveyed via a questionnaire to determine nitrate intake for those adopting a vegetarian diet. Nitrate intakes for the average Pole were obtained from the Central Statistical Office. Results. The domestic intake of nitrate, per average person, during 2000-2009, ranged from 115.5 to 133.7 mg NaNO3 with a mean of 125 mg NaNO3 of which 35.4% constituted the Acceptable Daily Intake (ADI). For vegetarians, the corresponding levels ranged from 37.3 to 2054.3 mg NaNO3 with a mean intake of 340.1 mg NaNO3 of which 95.8% represented the ADI. This was almost twice more than values obtained from calculating nitrate intakes of a typical 7-day vegetarian menu; 104.5 to 277.6 mg NaNO3 with a mean 175.9 mg NaNO3 with the 49.1% making up the ADI. Conclusions. The nitrate intakes in the tested vegetarians were 140 to 270% higher than ones for the average Pole, however in both cases the ADI was not exceeded. Nevertheless, the higher intake of nitrates so observed in vegetarians can be hazardous to some from this population group.
Background. Osteoporosis is a condition that has been much more frequent for women, which is related to menopause and to their lower bone mineral density (BMD). Inappropriate diet is among the development factors of the disease. Objective. To assess differences in consumption of particular nutrients among women with and without osteoporosis diagnosed. Material and Methods. The study was conducted in 2013 in a group of 100 women aged 51-70, using a questionnaire, including a 24-hour recall related to a participant’s nutrients consumptions. Results. Women suffering from osteoporosis were found to consume significantly lower amounts of fat (by 16%) and energy (by 13%), as well as vitamins: A (by 16%), E (by 20%), B6 (by 20%), niacin (by 16%) and C (by 19%). Differences in the consumption of minerals have been observed in the cases of calcium, phosphorus, sodium and potassium. The women with osteoporosis were fund to consume lower amounts of those elements, by 14%, 13%, 21% and 19% respectively. On the average, participants of the study in both groups consumed amounts of calcium at a half of the recommended level, and substantially exceeded the recommended values of phosphorus, as well as displaying an inappropriate calcium to phosphorus ratio (0.5:1). As little as 8% of the participants with osteoporosis declared a considerable change in their diet, with increased consumption of dairy products. Conclusion. The observed nutrition deficiencies in osteoporosis patients may be conducive to a worsened condition, and may lead to an onset of the disease in participants from the control group.
Background. The appropriate nutrition is an important component of the secondary prevention of cardiovascular diseases (CVD). Objectives. The aim of the study was to investigate if the patients with cardiovascular disease were informed of the role of appropriate nutrition in prevention or received nutrition guidelines and to assess the dietary intake compared to recommendations for patients with cardiovascular disease who received or not nutrition guidelines. Material and Methods. The study was conducted among patients with cardiovascular disease (n = 127) of cardiological hospital clinic, aged 62 ± 11. The questionnaire was used to obtain personal and anthropometric details, information if patients had received nutrition guidelines. The method of 3-day food records was used for dietary assessment. Results. 20% of subjects had not received nutrition guidelines and almost 40% of subjects did not recognize the nutrition effect on cardiovascular disease development. Compared to the diets of the subjects who had not received nutrition guidelines, the diets of those who had received them were of significantly lower intake of: energy from saturated fatty acids (15%, p = 0.006), cholesterol (21%, p = 0.012) and higher intake (14-26%) of potassium (p = 0,003), sodium (p = 0.013), phosphorus (p = 0.044), magnesium (p = 0.003), iron (p = 0.005), copper (p = 0.001), zinc (p = 0.046). Among the patients who had received nutrition guidelines, percentage of the subjects whose intake of nutrients was consistent with recommendations was higher. Conclusions. Not all subjects had received nutrition guidelines. Diets of those who had received them were more balanced, but in neither group nutrition guidelines were complied with.
Background. Cardiovascular disease is the most common cause of death in Poland, where many factors have been found responsible such as obesity, smoking cigarettes and a lack of physical activity. Amongst these are also nutritional determinants, which principally include the amount and types of dietary fatty acids consumed, coupled with low intakes of antioxidant-rich fruit and vegetables. Objectives. To assess nutrition in male subjects suffering from cardiovascular disease. Materials and methods. Subjects were 95 men with cardiovascular disease aged 30-90 years. Nutrition was assessed by weighed food records over 3 days. The calorific dietary intake, as well as the proportions of calories derived from dietary protein, carbohydrates and fat were also calculated; this included vitamins and minerals. Results. Only 18% subjects had a normal Body Mass Index (BMI); the rest falling into the overweight or obesity ranges. The average dietary calorific daily intakes were abnormally low at 1582 kcal/person, however the proportions of fat and protein making up this value were too high; respectively at 36% and 19%. The average daily consumption per person of cholesterol, fibre and vegetables were respectively 251 mg, 19 g and 608 g. A significant number were deficient in dietary minerals (eg. calcium, potassium and magnesium) as well as vitamins; especially A, B1 and Br Conclusions. Persons suffering from cardiovascular disease require a diet with sufficient calories for their body needs. It is also vital that the dietary sources of energy are properly balanced between protein, carbohydrates and fats as well as having appropriate intakes ofbothvitamins and minerals (eg. calcium, magnesium and potassium).
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.