Berenika specializes in dog and cat nutrition. Prepares nutritional plans for animals, both sick and healthy. Works on commercial foods and diets prepared at home (including the BARF diet). She is a certified cat behaviorist (Wyższa Szkoła Europejska im. ks. Józefa Tischnera w Krakowie). She is popularizing knowledge of animal nutrition and behavior on the website Kotuszkowo.pl. Berenika also is the author of articles published in trade journals for animal caretakers. Privately, the owner of 3 cats and a dog.