Pregnancy is a natural process that after conception and physical and biochemical changes that result in increased nutritional needs. To undergo a normal pregnancy process requires more nutritional intake than before pregnancy. This addition is 285 kcalories for energy and 12 grams of protein every day. This form of addition can be a full meal or snack with energy nutritional value of 180-300 calories and 12 grams of protein per day. The impact of nutritional problems during this period is permanent (irreparably perfect) and long-term and consequences including future human qualities such as cognitive impairment (lack of intelligence) are less productive and fail to compete in the global era. The cause of nutritional problems is a direct factor of inadequate intake and infectious diseases that mutually interact and reinforce each other. Indirect factors include parenting, access to health care facilities and access to family food that is influenced by socioeconomic, technology, education. This research is quasi experiment with pretest posttest design approach. Samples were taken randomly to pregnant women in the second quarter and 30 samples were obtained. Treatment with purple sweet potato snack and fish meal for 30 days. The aim of this research is to know the effect of sweet potato snack and gabus fish flour. Before and after treatment will be measured body weight, LILA, hemoglobin and albumin levels. Analyze the nutritional value of the product manually by means of DKBM (List of Food Composition). Data analysis is done descriptively and analytically. The results showed a significant increase in body weight of the sample with p 0,000. For LILA, Hemoglobin and Albumin there was a significant decrease (each p value was LILA p = 0.001, Hemoglobin p = 0.000 and Albumin p = 0,000) but still within normal limits. Snacking has not been able to increase these three variables. The weakness of this study is not using control samples. It is recommended for pregnant women to increase daily food consumption. Consumption of protein with good quality comes from animals such as cork fish with various preparations. For further research use control sample.