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Article

The Effects of a Low Sodium Meal Plan on Blood Pressure in Older Adults: The SOTRUE Randomized Feasibility Trial

1
Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
2
Harvard Medical School, Boston, MA 02115, USA
3
Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, Roslindale, MA 02131, USA
4
The Jack Satter House, Revere, MA 02151, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Pedro Moreira
Nutrients 2021, 13(3), 964; https://doi.org/10.3390/nu13030964
Received: 22 February 2021 / Revised: 9 March 2021 / Accepted: 10 March 2021 / Published: 16 March 2021
(This article belongs to the Section Nutrition and Public Health)
Reduced sodium meal plans are recommended by the Centers of Disease Control to lower blood pressure in older adults; however, this strategy has not been tested in a clinical trial. The Satter House Trial of Reduced Sodium Meals (SOTRUE) was an individual-level, double-blind, randomized controlled pilot study of adults living in a congregate living facility subsidized by the Federal Department of Housing and Urban Development (HUD). Adults over age 60 years ate 3 isocaloric meals with two snacks daily for 14 days. The meal plans differed in sodium density (<0.95 vs. >2 mg/kcal), but were equivalent in potassium and macronutrients. Seated systolic BP (SBP) was the primary outcome, while urine sodium-creatinine ratio was used to measure compliance. Twenty participants were randomized (95% women; 95% white; mean age 78 ± 8 years), beginning in 7 October 2019. Retention was 100% with the last participant ending 4 November 2019. Mean baseline SBP changed from 121 to 116 mmHg with the typical sodium diet (−5 mmHg; 95% CI: −18, 8) and from 123 to 112 mmHg with the low sodium diet (−11 mmHg; 95% CI: −15.2, −7.7). Compared to the typical sodium meal plan, the low sodium meal plan lowered SBP by 4.8 mmHg (95% CI: −14.4, 4.9; p = 0.31) and urine sodium-creatinine ratio by 36% (−36.0; 95% CI: −60.3, 3.4; p = 0.07), both non-significant. SOTRUE demonstrates the feasibility of sodium reduction in federally mandated meal plans. A longer and larger study is needed to establish the efficacy and safety of low sodium meals in older adults. View Full-Text
Keywords: sodium; trial; older adults; blood pressure; hypertension sodium; trial; older adults; blood pressure; hypertension
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MDPI and ACS Style

Juraschek, S.P.; Millar, C.L.; Foley, A.; Shtivelman, M.; Cohen, A.; McNally, V.; Crevatis, R.; Post, S.M.; Mukamal, K.J.; Lipsitz, L.A.; Cluett, J.L.; Davis, R.B.; Sahni, S. The Effects of a Low Sodium Meal Plan on Blood Pressure in Older Adults: The SOTRUE Randomized Feasibility Trial. Nutrients 2021, 13, 964. https://doi.org/10.3390/nu13030964

AMA Style

Juraschek SP, Millar CL, Foley A, Shtivelman M, Cohen A, McNally V, Crevatis R, Post SM, Mukamal KJ, Lipsitz LA, Cluett JL, Davis RB, Sahni S. The Effects of a Low Sodium Meal Plan on Blood Pressure in Older Adults: The SOTRUE Randomized Feasibility Trial. Nutrients. 2021; 13(3):964. https://doi.org/10.3390/nu13030964

Chicago/Turabian Style

Juraschek, Stephen P., Courtney L. Millar, Abby Foley, Misha Shtivelman, Alegria Cohen, Virginia McNally, Robert Crevatis, Stephen M. Post, Kenneth J. Mukamal, Lewis A. Lipsitz, Jennifer L. Cluett, Roger B. Davis, and Shivani Sahni. 2021. "The Effects of a Low Sodium Meal Plan on Blood Pressure in Older Adults: The SOTRUE Randomized Feasibility Trial" Nutrients 13, no. 3: 964. https://doi.org/10.3390/nu13030964

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