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Food textures affect perceptions of healthiness

Study shows how changing appearance could communicate healthier message

New research has demonstrated how food producers could change the surface texture of products to change people’s perceptions and promote healthy eating.

The study, led by Consumer Psychologist Dr Cathrine Jansson-Boyd of Anglia Ruskin University (ARU), investigated people’s perceptions of identical biscuits with six different textures.

Published in the journal Food Quality and Preference, the research involved 88 people rating the six oat biscuits on healthiness, tastiness, crunchiness, chewiness, pleasantness and likelihood of purchase based only on their visual appearance, not on their taste or touch.

Previous studies have shown that packaging, labeling and even the texture of a cup or plate can alter people’s perception of food. This new study looked at how a food product itself can be perceived differently depending on its appearance.

Oat biscuits were chosen as they can represent both a “healthy” and “unhealthy” snack. The research found that the surface texture of the oat biscuit clearly communicated to people how healthy it was likely to be and the participants viewed the biscuits that had an explicit, pronounced texture, as healthier.

However, the biscuits that had a less explicitly textured surface were perceived to be tastier, crunchier and more likely to be purchased. The study found that perceived tastiness increases as healthiness decreases, and the likelihood of purchasing the biscuit increases when perceived healthiness is low and decreases when healthiness is higher.

Therefore having a ‘healthy looking’ texture is considered to be a negative attribute in that it reduces perceived tastiness, a key criteria for purchasing biscuits. This has implications for producers of many different food types.

Dr Jansson-Boyd, Reader in Psychology at Anglia Ruskin University (ARU), said: “The findings are really exciting as they give food manufacturers a means to design foods that can help consumers make healthier choices.

“A sweet item, such as a biscuit, benefits from having an appearance as being less healthy as that increases the perception of tastiness and increases the likelihood of purchase. To guide healthier purchasing decisions, food producers can therefore look to use non-healthy looking, smoother textures to overcome this perception that healthy is not tasty.

“At a time when the World Health Organisation has declared that there is an obesity epidemic, it is essential to think of ways to encourage improved eating patterns. Our research provides a good starting point in how to promote healthier food products.”

Source: Anglia Ruskin University

Journal: Food Quality and Preference

Related Journal Article: https://www.sciencedirect.com/science/article/abs/pii/S0950329319307104

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