The feeding habits of 312 Swedish infants have been followed longitudinally from birth to one year of age. The duration of breastfeeding had increased in comparison with the low figures in the beginning of the 1970s. Complementary foods were usually introduced from three months of age. At the age of 6 months all infants received complementary foods such as semi-solids and solids and about 90% were given follow-up formula. Parents belonging to higher socioeconomic strata were more prone to act in accordance with general feeding recommendations, e.g. regarding breastfeeding duration, time of introduction of complementary foods and gluten-containing foods and the use of sucrose-rich foods.