[Evaluation of selected cereal products as a source of thiamine and niacin in diet]. / Ocena wybranych produktów zbozowych jako zrodla tiaminy i niacyny w diecie.

BACKGROUND: The priority of the modern diet should be as follows, low processed cereal products that contain high level fiber and vitamins B as well as the products that have low glycemic index. The best source of thiamine and niacin are grain food products which regulate body energy balance, nervous system, circulation as well as fulfill the role as cofactors of enzymes in the human body. OBJECTIVE: The purpose of this study was to determine and evaluate the concentration of thiamine and niacin in selected cereal products. MATERIAL AND METHOD: Eleven kinds of pasta and rice were used in this studies. Thiamine and niacin were determined in the free form. During the analytical process the acid hydrolysis and enzymatic technique were used. The HPLC method with ultraviolet for determination of thiamine and niacin were applied. The content of thiamine was determined by the length of the 254 nm and niacin 258 nm waves in various cereal products. RESULTS: The obtained results shown that the best source of thiamine and niacin was wild rice (0.59 +/- 0.02 mg and 6.13 +/- 0.06 mg respectively) while the lowest content of analyzed vitamins was in the examined vitamin-enriched pasta bits (0.06 +/- 0.01 mg and 0.42 +/- 0.02 mg). CONCLUSIONS: The analyzed cereal products were characterized by a variable content of tested vitamins. The most significant amount of vitamins B is higher in the examined rice than pasta. It was shown that the richest source of thiamine and niacin was the wild rice.

[Nutritional status and physical activity among citizens of Pomorze]. / Stopien odzywienia a aktywnosc fizyczna mieszkanców Pomorza.

Physical activity constitute a key factor of healthy lifestyle. Physical activity decreases the risk of many chronic diseases--notably obesity, diabetes, coronary heart disease and cancer. It is recommended to be physically active at least 90 min (3 days per 30 min) of vigorous activity or 150 min (5 days per 30 min) of moderate activity per week. The aim of the study was evaluation of physical activity level and indication of physical activity influence on BMI value. The obtained results indicate that 36.5% (40.4% of female "F" and 28% of male "M") did not perform any physical activity by way of sport. Moreover 36.5% (36.8% F and 32% M) performed sport activities 1-2 times per week and the average time of single activity of 73.9% (77.2% F and 64.0% M) was at least 30 min. It was also revealed that young citizens of Pomorze with correct BMI values were twice more active than young citizens of Pomorze with decreased or increased BMI values.

Evaluation for magnesium and vitamin B6 supplementation among Polish elite athletes.

Contemporary sport requires a lot of effort from sportsmen, frequently exceeding their maximum physical and mental efficiency. Athletes often report poor dietary habits and reach for magnesium and vitamin B supplements to avoid dietary deficiencies. The aim of this study was to determine magnesium and vitamin B6 content in daily food rations of Polish athletes and to verify the justification of diet supplementation. Magnesium and vitamin B6 concentrations were determined in 62 collected and 12 reconstructed daily food rations of elite Polish runners. Flame atomic absorption spectrometry and HPLC methods were used for quantification of magnesium and vitamin B6, respectively. The analyzed female diets provided daily 256 +/- 111 mg of magnesium and 2.04 +/- 0.63 mg of vitamin B6 whereas male diets provided 284 +/- 58 mg of magnesium and 2.12 +/- 0.68 mg of vitamin B6. Computer analysis calculated 159-181% higher content o magnesium and vitamin B6 comparing to determined laboratory values. The results of this study indicate that in the analyzed daily food rations of athletes low magnesium intake was observed, thus diet supplementation with this mineral may be justified. Daily food rations fulfilled RDA for vitamin B6, thus supplementation with this vitamin was not justified.

[Consumption of fruits and vegetables among university and college students in Gdansk and Sopot]. / Ocena czestotliwosci spozycia warzyw i owoców wsród studentów trójmiejskich uczelni.

The aim of the study was the determination of daily servings consumption and evaluation of frequency consumption of fruit and vegetables among university and college students. The study was carried out on the group of 180 students and was assessed by means of food frequency questionnaire. Students mostly ate from 1 to 2 servings of vegetables and 2 servings of fruit per day. The most commonly consumed vegetables were: tomatoes, carrots and onions. The most commonly consumed fruits were: apples, bananas, lemons and tangerines. Consumption of both vegetables and fruits was to low to cover daily recommendations.

[Nutritional habits and diet supplementation of Polish middle and long distance representative runners (years 2004-2005)]. / Sposób zywienia i suplementacji diety reprezentantów Polski w biegach srednio- i dlugodystansowych w latach 2004-2005.

Nutrition is essential element of sport training. Owing to providing to diet optimal amount of nutritive components sportsmen can realize adequate training process. Athletes often use supplements believing that they can help them to achieve sport success. The nutrition way of Polish athletes seems to be inappropriate. Diet contained too much fat and delivered too less nutritive constituents to cover daily dietary intake. Analysis also demonstrated differences between estimated and determined content of nutritive constituents in the food studied.