Durán-Cabral, MadelineEstévez-Santiago, RocíoWinter-Matos, AlexandraGarcía-Estrella, KilsarisOlmedilla-Alonso, BegoñaGarcía-Lithgow, Carlos H.2026-01-272026-01-272025-02Durán-Cabral, M, Estévez-Santiago, R, Winter-Matos, A, García-Estrella, K, Olmedilla-Alonso, B & García-Lithgow, C H 2025, 'Assessment of Dietary Sodium, Potassium and Sodium-Potassium Ratio Intake by 72 h Dietary Recall and Comparison with a 24 h Urinary Sodium and Potassium Excretion in Dominican Adults', Nutrients, vol. 17, no. 3, 434. https://doi.org/10.3390/nu170304342072-6643PubMedCentral: PMC11820599unpaywall: 10.3390/nu17030434https://hdl.handle.net/10641/7520Publisher Copyright: © 2025 by the authors.Background: PAHO-WHO reports that sodium intake is currently high in the Caribbean. The objective was to estimate sodium (Na) and potassium (K) intakes by 72 h dietary recall and compare them with those obtained from 24 h urinary excretion in Dominican adults. Methods: A total of 69 adults (33 men) completed a 3-day dietary recall with emphasis on added salt and seasonings. The 24 h urine samples were analysed by indirect potentiometry using the membrane ion-selective electrode technique. The WHO-PAHO Questionnaire on Knowledge, Attitudes and Behaviour toward Dietary Salt and Health was completed. Results: Dietary Na intake ranged from 1.0 to 8.3 g. Median dietary and urinary Na concentrations were similar (2.7 and 2.5 mmol/d). Mean dietary Na and K concretertentrations were higher than those excreted in 24 h urine (133.0 ± 59.7 vs. 103.7 ± 44.5 mmol Na/d, p = 0.001; 69.0 ± 21.0 vs. 36 ± 16.3 mmol K/d, p < 0.001). The Na-to-K ratio was lower in dietary than in 24 h urine samples (2.0 ± 1.1 vs. 3.2 ± 1.6 mmol/d, p < 0.001). Urinary Na concentration was associated with sex (r = 0.280, p = 0.020) and obesity (r = 0.244, p = 0.043) and K with sex (r = 0.356, p = 0.003). Urinary Na-to-K was inversely related to age (r= −0.291, p = 0.015). Sex and obesity explained 11% of the variance in urinary Na concentration and sex only of the variance in urinary K concentration. The only significant correlation between dietary and urinary concentrations was that of K (r = 0.342, p = 0.004). This correlation matrix, controlled for overweight and sex, maintained the level of significance and was equal in almost 12% of the data. Conclusions: These data, which are the first data on Na and K intakes in Dominicans assessed by dietary assessment, showed a higher mean sodium intake (mean of dietary recall and urinary excretion data: 2.7 g Na, 6.8 g salt/day) and a lower K intake (2.06 g/day) than the WHO recommendations (<2.0 g Na, ≥3.5 g K). Potassium, but not sodium, intake from 72 h food recall and 24 h urinary excretion showed a correlation when controlling for sex and obesity, but not enough to consider them interchangeable.710941enghttp://creativecommons.org/licenses/by-nc-nd/4.0/CaribbeanDominican RepublicDominicansdietary intakepotassiumsalt intakesodiumsodium-to-potassium ratioFood ScienceNutrition and DieteticsSDG 3 - Good Health and Well-beingJournal ArticleComparative StudyYesyesjournal articleopen access10.3390/nu17030434https://www.scopus.com/pages/publications/85217786061https://www.scopus.com/pages/publications/85217786061#tab=citedBy