Comparing a range of potassium-enriched low sodium salt substitutes to common salt: results of taste and visual tests in South African adults

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dc.article.end-page910
dc.article.start-page903
dc.contributor.authorNorris, Shane A.
dc.contributor.authorCrouch, Simone H.
dc.contributor.authorWare, Lisa J.
dc.contributor.authorSchutte, Aletta E.
dc.date.accessioned2024-08-14T07:05:23Z
dc.date.available2024-08-14T07:05:23Z
dc.date.issued2024
dc.description.abstractBackground and aims: Potassium-enriched low sodium salt substitutes (LSSS), which replace a proportion of sodium chloride (NaCl) with potassium chloride (KCl), have been shown to reduce blood pressure and offer a potential solution to address the high burden of hypertension in South Africa. However, it is unknown which proportions of KCl in LSSS are acceptable. We compared the taste and visual acceptability of various LSSS in South African adults. Methods and results: Fifty-six adults underwent double-blind taste and visual tests of four LSSS (35%KCl/65%NaCl; 50%KCl/50%NaCl; 66%KCl/34%NaCl; 100%KCl) in comparison to 100%NaCl (common salt). Participants scored each product by taste ranking, taste perception and likeliness to use. Participants then visually inspected the five products and attempted to identify which was which. Almost half (45 %) of participants ranked the taste of 50%KCl/50 %NaCl as fantastic or really good. Furthermore, 62 % of participants liked and would be happy to use the 50 %KCl/50 %NaCl or felt this tasted like common salt. Only 12 % rated the 100%KCl highly for taste, and over half reported being unlikely to use this. Most participants (57.3 % and 36.4 %) were able to visually identify 100%NaCl and 100%KCl, while identification of other blends was generally poor. Responses were similar for 35%KCl/65%NaCl and 66%KCl/34%NaCl throughout. Conclusion: Our findings suggest that the taste of the 50%KCl salt substitute would be well tolerated by South African adults, most of which could not visually differentiate between this salt substitute and common salt.
dc.description.sponsorshipStrategic Hires and Retention Pathways (SHARP) Fellowship.
dc.description.sponsorshipWits Health HUBB.
dc.description.sponsorshipDevelopment Bank of Southern Africa.
dc.description.sponsorshipNational Health and Medical Research Council (NHMRC) Leadership Investigator Grant.
dc.description.sponsorshipDSI-NRF Centre of Excellence in Human Development.
dc.description.sponsorshipJoint Global Health Trials (UK).
dc.description.sponsorshipSouth Africa Medical Research Council (SAMRC).
dc.description.sponsorshipDSI-NRF Centre of Excellence in Human Development at the University of Witwatersrand, Johannesburg, South Africa.
dc.description.submitterPM2024
dc.facultyFaculty of Health Sciences
dc.identifier0000-0001-7124-3788
dc.identifier.citationSimone H. Crouch, Lisa J. Ware, Shane A. Norris, Aletta E. Schutte, Comparing a range of potassium-enriched low sodium salt substitutes to common salt: Results of taste and visual tests in South African adults, Nutrition, Metabolism and Cardiovascular Diseases, Volume 34, Issue 4, 2024, Pages 903-910, ISSN 0939-4753, https://doi.org/10.1016/j.numecd.2023.12.015.
dc.identifier.issn0939-4753 (print)
dc.identifier.other10.1016/j.numecd.2023.12.015
dc.identifier.urihttps://hdl.handle.net/10539/40090
dc.journal.linkhttps://www.journals.elsevier.com/nutrition-metabolism-and-cardiovascular-diseases
dc.journal.titleNutrition, Metabolism and Cardiovascular Diseases
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofseriesVol. 34; Issue 4
dc.schoolSchool of Clinical Medicine
dc.subjectSodium
dc.subjectPotassium
dc.subjectSalt
dc.subjectSalt substitute
dc.subjectTaste
dc.subject.otherSDG-3: Good health and well-being
dc.titleComparing a range of potassium-enriched low sodium salt substitutes to common salt: results of taste and visual tests in South African adults
dc.typeArticle
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