Teenage pregnancy is regarded as a special situation because of the demands for growth and development that occur in this period, which influences the final stage of pregnancy. Weight gain adjustment is reported in the literature as an important factor in pregnancy because it is directly related to maternal nutritional status and it is consequently one of the predictors of fetal growth and development, as well as of the postnatal nutritional status of newborns. In this study, we aimed to discuss the recommendations and guidance on weight gain during teenage pregnancy and provide subsidies for health professionals working in the field. To this end, we carried out a bibliographic survey of scientific articles indexed between 2001 and 2011 in the following databases: Scientific Electronic Library Online (SciELO), Latin American and Caribbean Health Sciences Literature (LILACS), and Medical Literature Analysis and Retrieval System Online (Medline) of the National Library of Medicine. Given the relevance of appropriate weight gain for pregnant teenagers and its major difficulties, it is suggested that these young mothers be supervised by health professionals, with nutritional support, in order to ensure a successful outcome for the mother-child binomial.