 The sample of this study will be composed by 318 pregnant women in the pre-natal care unit of the Health Center in Viamão city Rio Grande do Sul, including women between the 10th and 25th weeks of gestation, aged up to 35 years old. The eligible pregnant women will be invited by the fieldworks to participated in the trial after be informed about the overall aims of the study. These women willing to participate will be randomly allocated to either the intervention or control group. The intervention group received specific guidelines about feeding practices appropriate to each nutritional status. 