Grocery shopping shapes the home food environment, which can contribute to the development of obesity. Episodic future thinking (EFT) helps adults make healthier decisions by initiating prospective thinking, which guides one to forego smaller immediate rewards in favor of larger delayed rewards. EFT could help parents improve grocery purchases thereby improving the home food environment and family eating behaviors. The effect of EFT on food shopping was evaluated in two studies with mothers who were overweight/obese and primary household shoppers. In Study 1, 24 mothers were randomized to goal-directed process EFT versus a money saving control. In Study 2, 33 mothers were randomized to goal-directed process EFT, general EFT, or an episodic recent thinking (ERT) control. Following cue generation, participants completed a task where they purchased one week of groceries from an online store. Food purchases were analyzed for calories purchased per family member. In Study 1 the goal-directed process EFT group purchased fewer calories per person (F(1, 23) = 25.16, p < .001; η p 2 = .522). In Study 2 the goaldirected process EFT purchased fewer calories (F(1, 30) = 5.98, p = 0.02; η p 2 = .166) than the ERT control as did the EFT general group (F(1, 30) = 4.61, p = 0.04; η p 2 = .133). The two EFT groups did not differ from each other (F(1, 30) = 0.16, p = 0.69; η p 2 = .005). EFT may be an effective intervention when grocery shopping to reduce energy intake of foods purchased and could be a helpful component to a behavioral family-based obesity treatment program.Two in three adults and one in three children were obese in America in 2016 and that rate has been steadily increasing since 1999 (Skinner, Ravanbakht, Skelton, Perrin, & Armstrong, 2018). A major cause of obesity is a high intake of calorie-dense, nutrient-poor foods in tandem with a low intake of nutrient-rich foods (Dehghan, Akhtar-Danesh, & Merchant, 2005). Families that include children consume a majority of their calories from food that is purchased by parents, and mothers in particular tend to have greater control and influence over what their families consume when compared to other influences (Gibson et al.