Nutritional supplements: Consumer usability, palatability and acceptability
28 September 2026 | Sarah Thomas, Consumer and Sensory Insights Section Manager
When developing a nutritional supplement – whether that be a chewable, syrup, milkshake, smoothie, yoghurt or other product – its clinical efficacy is only part of the equation. The supplement’s usability, palatability and acceptability all influence an individual’s adherence and outcomes.
For those who may need to use these products regularly, sometimes over long periods, even small barriers (such as an unpleasant aftertaste, difficult-to-open packaging or unclear instructions) can affect whether the consumption requirement is adhered to.
This blog explores the key roles of flavour, texture, usability and other factors in the acceptance and market success of nutritional supplements.
Beyond efficacy – other factors to consider
A nutritional supplement meeting all regulatory and efficacy requirements can still fail in the marketplace if, for example, it is too complicated to administer or unpleasant to consume.
Efficacy matters – but usability, palatability and acceptability can determine whether a nutritional supplement is successful in the marketplace.
Key considerations include:
- Appearance, odour, flavour, texture/mouthfeel and aftertaste all affect the palatability and acceptability of these types of products.
- For example, getting the right sweetness level, the impact of lingering medicinal notes, and the potential for flavour fatigue over repeated consumption may all play a part.
- Acceptability goes beyond whether someone likes a product on first taste; it also considers whether they would be willing and able to consume it repeatedly in real-life conditions.
- The product pack needs to effectively market the product, be user-friendly to open and use, as well as have clear instructions on it for any preparation.
- Any marketing claims on the pack need to be substantiated.
Through consumer testing of nutritional supplements, all these elements can be explored for successful product development and validation, and the necessary evidence gathered for claim substantiation. Such studies can help identify where a product performs well, where individuals encounter barriers, and which sensory or usability attributes are most strongly influencing acceptability and preference.
Usability, palatability and acceptability insights
Our robust, independent studies provide credible scientific evidence in relation to the usability, acceptance and preference performance of nutritional supplements with healthy consumers. We recruit adults and children to take part based on the needs of the study, and tailor the questions to suit the age group and the product.
Our team can help test and refine product concepts, giving developers and marketeers the assurance that the packaging, and its instructions, together with the product delivers on its proposition and secures its position in the market.
As well as guiding product development and refinement via insights into consumer experience, acceptability and preference (and the factors driving these), we can provide the consumer-based evidence needed for substantiation of affective and performance claims.
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By understanding these factors early, manufacturers can reduce the risk of late-stage reformulation, support stronger product positioning and build confidence ahead of launch. In a category where product experience can directly influence regular use, consumer insight is essential for developing supplements that are not only effective, but user-friendly, satisfactory to consume and preferred over their competitors.
Product innovation, optimisation and lifecycle support
For food, drink and more, we provide support with end-to-end product development, onward quality management and beyond. Our unrivalled technical support for product innovation, optimisation and lifecycle helps our members and clients with every step of the process – from ideation through to successful launch, as well as managing ongoing quality alongside future changes and risks.
We bring together all the expertise you need to make the right decisions, overcome challenges and conquer your market. No matter your challenge or stage of project, our team of technical experts can provide you with the right support, tailored to your needs.
About Sarah Thomas
Sarah is an experienced consumer insights practitioner, whose background in qualitative research provides a skill set that is sensitive to understanding the complexities of individuals’ thoughts, feelings, and behaviours. Sarah works closely with clients to fully comprehend their research needs and respond with tailored study designs that deliver solutions to technical challenges and/or inform new product development.
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