Title |
Potato Consumption Does Not Increase Blood Pressure or Incident Hypertension in 2 Cohorts of Spanish Adults
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Published in |
Journal of Nutrition, December 2017
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DOI | 10.3945/jn.117.252254 |
Pubmed ID | |
Authors |
Emily A Hu, Miguel A Martínez-González, Jordi Salas-Salvadó, Dolores Corella, Emilio Ros, Montse Fitó, Antonio Garcia-Rodriguez, Ramon Estruch, Fernando Arós, Miquel Fiol, José Lapetra, Lluís Serra-Majem, Xavier Pintó, Miguel Ruiz-Canela, Cristina Razquin, Mònica Bulló, José V Sorlí, Helmut Schröder, Casey M Rebholz, Estefania Toledo |
Abstract |
Background: Potatoes have a high glycemic load but also antioxidants, vitamins, and minerals. It is unclear what mechanisms are involved in relation to their effect on blood pressure (BP) and hypertension.Objectives: This study aimed to assess the association between potato consumption, BP changes, and the risk of hypertension in 2 Spanish populations.Methods: Separate analyses were performed in PREDIMED (PREvención con DIeta MEDiterránea), a multicenter nutrition intervention trial of adults aged 55-80 y, and the SUN (Seguimiento Universidad de Navarra) project, a prospective cohort made up of university graduates and educated adults with ages (means ± SDs) of 42.7 ± 13.3 y for men and 35.1 ± 10.7 y for women. In PREDIMED, generalized estimating equations adjusted for lifestyle and dietary characteristics were used to assess changes in BP across quintiles of total potato consumption during a 4-y follow-up. Controlled BP values (systolic BP <140 mm Hg and diastolic BP <90 mm Hg) during follow-up were also assessed. For SUN, multivariate-adjusted HRs for incident hypertension during a mean 6.7-y follow-up were calculated.Results: In PREDIMED, the total potato intake was 81.9 ± 40.6 g/d. No overall differences in systolic or diastolic BP changes were detected based on consumption of potatoes. For total potatoes, the mean difference in change between quintile 5 (highest intake) and quintile 1 (lowest intake) in systolic BP after multivariate adjustment was -0.90 mm Hg (95% CI: -2.56, 0.76 mm Hg; P-trend = 0.1) and for diastolic BP was -0.02 mm Hg (95% CI: -0.93, 0.89 mm Hg; P-trend = 0.8). In SUN, the total potato consumption was 52.7 ± 33.6 g/d, and no significant association between potato consumption and hypertension incidence was observed in the fully adjusted HR for total potato consumption (quintile 5 compared with quintile 1: 0.98; 95% CI: 0.80, 1.19; P-trend = 0.8).Conclusions: Potato consumption is not associated with changes over 4 y in blood pressure among older adults in Spain or with the risk of hypertension among Spanish adults. This trial was registered at www.controlled-trials.com as ISRCTN35739639. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 10 | 43% |
Canada | 2 | 9% |
Spain | 1 | 4% |
United Kingdom | 1 | 4% |
Unknown | 9 | 39% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 16 | 70% |
Scientists | 4 | 17% |
Practitioners (doctors, other healthcare professionals) | 2 | 9% |
Science communicators (journalists, bloggers, editors) | 1 | 4% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 131 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 21 | 16% |
Student > Bachelor | 21 | 16% |
Professor > Associate Professor | 10 | 8% |
Other | 9 | 7% |
Student > Master | 9 | 7% |
Other | 24 | 18% |
Unknown | 37 | 28% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 34 | 26% |
Nursing and Health Professions | 17 | 13% |
Biochemistry, Genetics and Molecular Biology | 12 | 9% |
Agricultural and Biological Sciences | 7 | 5% |
Pharmacology, Toxicology and Pharmaceutical Science | 3 | 2% |
Other | 13 | 10% |
Unknown | 45 | 34% |