Previous research demonstrated that affective stimuli gain accelerated access to attentional resources and that this causes switch costs differences when participants switch between affective and non-affective task-sets in task-switching. The present study aimed to investigate, how food deprivation (i.e. fasting) influenced task performance and choice in voluntary task-switching with neutral digit and affective food stimuli. Participants voluntarily switched between the categorization of simple digits as odd or even, and the categorization of food images as sweet or savory. The fasting period lasted 14 hours in Experiment 1, and 18 hours in Experiment 2. Experiment 1 demonstrated lower switch costs when switching to the affective food task compared to switching to the neutral digit task in both the fasting and control group. Experiment 2 replicated the results of Experiment 1 and additionally showed that switch costs when switching to the neutral digit task were significantly higher in the fasting group compared to the control group. Our results indicate that independently of hunger, the affective content of the food stimulus leads to faster activation of this task-set in working memory, which results in smaller switch costs when switching to the food task. The observation of larger switch costs for the neutral digit task in Experiment 2 fits the assumption that with hunger more effort is needed to overcome the activation of the food task-set to activate the digit task-set. This effect seems to depend on the level of hunger. No effects were found for task choice and switch rate.