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Dietary sodium intake and its relationship to adiposity in young black and white adults: The African-PREDICT study
Crouch, S.H Ware, L.J Gafane-Matemane, L.F Kruger, H.S Van Zyl, T Van der Westhuizen, B Schutte, A.E
Crouch, S.H
Ware, L.J
Gafane-Matemane, L.F
Kruger, H.S
Van Zyl, T
Van der Westhuizen, B
Schutte, A.E
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Abstract
Obesity and salt intake are both established factors contributing to cardiovascular disease development. Recently, studies found a controversial positive relationship between dietary salt and obesity. Therefore, the authors investigated whether obesity-related measures are associated with 24-hour urinary sodium in a healthy biethnic population. The study included 761 adults (20-30 years) with complete 24-hour urinary sodium, anthropometry, and bioelectrical impedance measurements. In single regression analyses all obesity-related measures related positively with 24-hour urinary sodium (P ≤ .008). However, with multivariate adjustments for energy intake, accelerometery, age, sex, black and white ethnicity, and other covariates, only body surface area (BSA) remained independently associated with 24-hour urinary sodium (R = 0.72, β = .05, P = .039). To conclude, we found a consistent and robust positive relationship between BSA and estimated salt intake - but not with traditional obesity measures such as body mass index (BMI). Further studies are needed to investigate body surface area and potentially, skin area, in salt handling.
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Date
2018-07-01
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Wiley
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Keywords
body surface area,dietary sodium,energy expenditure,energy intake,obesity,salt
Citation
Crouch SH, Ware LJ, Gafane-Matemane LF, Kruger HS, Van Zyl T, Van der Westhuizen B, Schutte AE. Dietary sodium intake and its relationship to adiposity in young black and white adults: The African-PREDICT study. J Clin Hypertens (Greenwich). 2018 Jul 1;20(8):1193–202. doi: 10.1111/jch.13329.