1. Ewa Stasiuk, Anna Rój, Piotr Przybyłowski, The contents of lead and cadmium in nutrients for sportsmen; 2. Ewa Stasiuk, , The contents of lead and cadmium in tomato juices; 3. Jerzy Zielnica, Ryszard Staniszewski, Maciej Borucki, Migration of selected heavy metals to seeds of amaranth in the presence of chelants; 4. Dominika Jakubowska, Michalina Kotlarska, Renata Pietrzak-Fiećko, Harmful substances in selected foodstuffs from the Olsztyn market; 5. Jarosław Parol, Zbigniew Borejszo, Renata Pietrzak-Fiećko, Organochlorine insecticides in fat of sea and freshwater fish obtained on the market of the city of Olsztyn; 6. Urszula Samotyja, Maria Małecka, Magdalena Pawłowska, Saturated and trans fatty acids in selected confectionery products; 7. Elżbieta Kondratowicz-Pietruszka, Lidia Ostasz, Dynamics of oxidation of heated vegetable oils; 8. Lidia Ostasz, The analysis of oxidative changes and fatty acid composition in refined oils during microwave heating; 9. Bronisław Buczek, Agnieszka Leśniak, Effect of selective UV radiation on the oxidative stability of vegetable oils with addition of BHT; 10. Ryszard Żywica, Joanna K. Banach, Katarzyna Kiełczewska, Application of conductance properties of raw milk for the evaluation of the degree of its dilution; 11. Krystyna Kwiatkowska-Sienkiewicz, Piotr Presz, Caffeine and total glucose, xylose and fructose content in soluble coffe available in Polish market; 12. Barbara Felkner, Zbigniew Borejszo, Renata Pietrzak-Fiećko, Vegetable fats in commercial dairy products - a new problem in quality assessment? [O]