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Updated: Aug 21, 2026

Psychophysical Tracking Method to Measure Taste Preferences in Children and Adults
Published on: July 16, 2016
Sour taste preferences of children relate to preference for novel and intense stimuli
Djin Gie Liem1, Annemarie Westerbeek, Sascha Wolterink
1Division of Human Nutrition, Wageningen Taste & Smell Centre, Wageningen University, P.O. Box 8129, 6700 EV Wageningen, The Netherlands. djin-gie.liem@wur.nl.
Insights
Many children prefer sour tastes, linked to seeking intense flavors and new experiences. This preference in children may influence trying novel foods and liking bright colors.
Area of Science:
- Pediatric Nutrition
- Sensory Science
- Child Psychology
Background:
- Some children exhibit a preference for sour tastes, but the underlying reasons are not fully understood.
- Potential origins include physiological differences or a general inclination towards intense and novel stimuli.
Purpose of the Study:
- To investigate the origins of sour taste preference in children.
- To determine if sour preference relates to saliva properties, perceived intensity, or a broader seeking of intense stimuli.
Main Methods:
- Eighty-nine children (7-12 years) ranked preferences and perceived intensities of sour gelatins and brightness of yellow cards.
- Saliva flow, buffering capacity, and willingness to try a novel candy were also measured.
Main Results:
- 58% of children preferred the most sour gelatins.
- Sour taste preference correlated with preference for bright colors and willingness to try novel foods.
- Sour preference was not linked to perceived sour intensity but was associated with higher salivary flow.
Conclusions:
- A significant portion of young children prefer intense sour tastes.
- This preference is associated with a broader tendency to seek intense stimuli, including novel foods and bright colors.
- Findings suggest implications for promoting sour-tasting, healthy foods like fruits to children.
Abstract:
Previous research has suggested that some children have a preference for sour tastes. The origin of this preference remains unclear. We investigated whether preference for sour tastes is related to a difference in rated sour intensity due to physiological properties of saliva, or to an overall preference for intense and new stimuli. Eighty-nine children 7-12 years old carried out a rank-order procedure for preference and category scale for perceived intensity for four gelatins (i.e. 0.0 M, 0.02 M, 0.08 M, 0.25 M added citric acid) and four yellow cards that differed in brightness. In addition, we measured their willingness to try a novel candy and their flow and buffering capacity of their saliva. Fifty-eight percent of the children tested preferred one of the two most sour gelatins. These children had a higher preference for the brightest color (P < 0.05) and were more likely to try the candy with the unknown flavor (P < 0.001) than children who did not prefer the most sour gelatins. Preference for sour taste was not related with differences in rated sour intensity, however those who preferred sour taste had a higher salivary flow (P < 0.05). These findings show that a substantial proportion of young children have a preference for extreme sour taste. This appears to be related to the willingness to try unknown foods and preference for intense visual stimuli. Further research is needed to investigate how these findings can be implemented in the promotion of sour-tasting food such as fruit.
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