Use of invalid growth curves can result in false conclusions about the growth and thriving of children. We describe the current growth pattern of 0- to 1-year-old children in Denmark compared to national and international references. The data consist of weights and lengths of 6,090 children born in the County of Copenhagen in the year 2000. The updated growth curves differ markedly from the growth references and show a changed growth pattern of Danish infants, with a more rapid increase in weight during the first six months of life. The curves represent an updated alternative for monitoring growth in Danish infants.