The extent to which the dietary practices recommended by nutrition science are compatible with an enjoyable lifestyle is a recurring theme in the debate on food and health in Denmark. The aim of this study was to see in practice what problems arise when ordinary people are confronted with a healthy diet. Fourteen of the participants in an 8 month dietary intervention study were interviewed about their opinions of, and experiences with, a diet composed in accordance with the Nordic nutrition recommendations. The interviews were qualitative, in depth and semi-structured. The participants were interviewed twice, the first time towards the end of the intervention and again 3 months after the intervention ended. The interviews were transcribed verbatim and analysed thematically. For the participants, who were young students with a relatively high knowledge of nutrition, practical experience of a recommended diet was a series of surprises: the amount of food, its similarity to modern Danish food culture, its palatability, and the relatively small amnount of dairy products in the diet were contrary to participants expectations. Participants found the recommended diet pleasant to live on, but expected certain economical and practical difficulties in applying it to everyday life outside the intervention. Hunger and satiety sensations changed and became more distinct. The results of the study indicate suggestions relevant for both industrial product development and nutrition information to the public.