Taste perception is known to be altered in microgravity, which can significantly impact astronauts’ food acceptance and overall dietary experience. This study examines the effects of microgravity and virtual reality (VR) on the sensory perception and overall liking of foods, specifically lemonade and vegetable soup, under controlled experimental conditions. The results indicate that overall liking for both products decreased significantly in microgravity, consistent with prior research on sensory suppression in space environments. However, VR demonstrated a compensatory effect, as overall liking scores in VR-enhanced microgravity stabilized and closely resembled those observed under normal gravity. This suggests that VR has the potential to mitigate the adverse effects of microgravity on taste perception, thereby improving food acceptability for astronauts. These findings underscore the necessity for further research into sensory modulation in altered-gravity environments, particularly for long-duration space missions. Future studies should explore VR-based interventions, adaptive food formulations, and multisensory integration strategies to optimize food palatability and acceptance in space.
Tao et al. (Sun,) studied this question.