QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Purchase Article View Shopping Cart Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Davy, B. M. Articles by Davy, K. P. Search for Related Content PubMed PubMed Citation Articles by Davy, B. M. Articles by Davy, K. P.

---

Human Nutrition and Metabolism

Oat Consumption Does Not Affect Resting Casual and Ambulatory 24-h Arterial Blood Pressure in Men with High-Normal Blood Pressure to Stage I Hypertension¹

Brenda M. Davy^*, Christopher L. Melby^*, Stacy D. Beske, Richard C. Ho^*, Linda R. Davrath and Kevin P. Davy^*,2

^* Department of Food Science and Human Nutrition and Department of Health and Exercise Science, Colorado State University, Fort Collins, CO 80523

²To whom correspondence and reprint requests should be addressed. E-mail: davy{at}cahs.colostate.edu.

The results of epidemiologic studies suggest that increased intake of dietary fiber is associated with lower levels of arterial blood pressure (BP). However, there is little information available addressing the possibility that increased oat consumption may reduce arterial BP in individuals with elevated arterial BP. To test this hypothesis, middle-aged and older men (n = 36; body mass index, 25–35 kg/m²; aged 50–75 y) with elevated BP (systolic BP 130–159 mmHg and/or diastolic BP 85–99 mmHg) were randomly assigned to consume an additional 14 g/d of dietary fiber in the form of oat (5.5 g ß-glucan, n = 18) or wheat cereals (no ß-glucan, n = 18) for 12 wk. Casual resting arterial BP was measured at baseline and after 4, 8 and 12 wk of intervention. The 24-h ambulatory arterial BP was measured at baseline and after 12 wk of intervention. There were no differences in casual resting or 24-h ambulatory BP at baseline in the two groups. Casual systolic BP (SBP) did not change as a result of the 12-wk intervention in the oat (138 ± 2 vs. 135 ± 3 mmHg) or wheat (142 ± 2 vs. 140 ± 3 mmHg) groups, respectively (all P > 0.05). Casual diastolic BP (DBP) also did not change in the oat (89 ± 2 vs. 88 ± 2 mmHg) or wheat (90 ± 2 vs. 91 ± 2 mmHg) group during this period (all P > 0.05). Further, 24-h, daytime and nighttime SBP and DBP did not decrease with the intervention. Therefore, the results of the present study suggest that any cardioprotective benefit of regular oat consumption may not be conferred via an arterial BP-lowering effect.

KEY WORDS: • oat fiber • wheat fiber • arterial blood pressure • humans

This article has been cited by other articles:

				F. F. De Moura, K. D. Lewis, and M. C. Falk Applying the FDA Definition of Whole Grains to the Evidence for Cardiovascular Disease Health Claims J. Nutr., November 1, 2009; 139(11): 2220S - 2226S. [Abstract] [Full Text] [PDF]

				M. B. Andon and J. W. Anderson State of the Art Reviews: The Oatmeal-Cholesterol Connection: 10 Years Later American Journal of Lifestyle Medicine, February 1, 2008; 2(1): 51 - 57. [Abstract] [PDF]

				L. Wang, J M. Gaziano, S. Liu, J. E Manson, J. E Buring, and H. D Sesso Whole- and refined-grain intakes and the risk of hypertension in women Am. J. Clinical Nutrition, August 1, 2007; 86(2): 472 - 479. [Abstract] [Full Text] [PDF]