Rationale and design of the Dietary Approaches to Stop Hypertension trial (DASH). A multicenter controlled-feeding study of dietary patterns to lower blood pressure

Frank M. Sacks, Eva Obarzanek, Marlene M. Windhauser, Laura P. Svetkey, William M. Vollmer, Marjorie McCullough, Njeri Karanja, Pao Hwa Lin, Priscilla Steele, Michael A. Proschan, Marguerite A. Evans, Lawrence Appel, George A. Bray, Thomas M. Vogt, Thomas J. Moore, Investigators DASH Investigators

Research output: Contribution to journalArticle

Abstract

Epidemiologic studies have found that dietary patterns characterized by high intakes of certain minerals and fiber are associated with low blood pressure. Dietary Approaches to Stop Hypertension (DASH) is a multicenter, randomized, controlled-feeding trial designed to test the effects on blood pressure of two such dietary patterns consumed for 8 weeks. The two experimental diets will be compared with each other and with a control dietary pattern that is relatively low in potassium, magnesium, calcium, and fiber, and has a fat and protein profile mirroring current US consumption. The first experimental diet, arguably termed "ideal," is high in fruits, vegetables, whole cereal products, low-fat dairy products, fish, chicken, and lean meats designed to be low in saturated fat and cholesterol; moderately high in protein; and high in minerals and fiber. The second experimental diet tests the effect of fruits and vegetables alone. Its potassium, magnesium, and dietary fiber content will be at the same high levels as the ideal dietary pattern, while its fat, protein, and calcium content will resemble that of the control dietary pattern. The study population will consist of 456 healthy men and women, aged 22 years or older, with systolic blood pressure less than 160 mm Hg and diastolic blood pressure 80 to 95 mm Hg. African-American and other minority groups will comprise 67% of the population. Participants will eat one of the three dietary patterns. The DASH trial has unique features. First, dietary patterns rather than single nutrients are being tested. Second, all food for the experimental diets is provided to the participants using a standardized multicenter protocol. Because the dietary patterns are constructed with commonly consumed food items, the results, if positive, may be conveniently implemented in dietary recommandations to the general public.

Original languageEnglish (US)
Pages (from-to)108-118
Number of pages11
JournalAnnals of Epidemiology
Volume5
Issue number2
DOIs
StatePublished - 1995

Fingerprint

Blood Pressure
Hypertension
Fats
Mineral Fibers
Diet
Food
Vegetables
Magnesium
Fruit
Potassium
Calcium
Minority Groups
Proteins
Dairy Products
Dietary Fiber
African Americans
Hypotension
Meat
Population
Epidemiologic Studies

Keywords

  • blood pressure
  • clinical trial
  • Diet
  • hypertension

ASJC Scopus subject areas

  • Epidemiology
  • Medicine(all)
  • Public Health, Environmental and Occupational Health

Cite this

Rationale and design of the Dietary Approaches to Stop Hypertension trial (DASH). A multicenter controlled-feeding study of dietary patterns to lower blood pressure. / Sacks, Frank M.; Obarzanek, Eva; Windhauser, Marlene M.; Svetkey, Laura P.; Vollmer, William M.; McCullough, Marjorie; Karanja, Njeri; Lin, Pao Hwa; Steele, Priscilla; Proschan, Michael A.; Evans, Marguerite A.; Appel, Lawrence; Bray, George A.; Vogt, Thomas M.; Moore, Thomas J.; DASH Investigators, Investigators.

In: Annals of Epidemiology, Vol. 5, No. 2, 1995, p. 108-118.

Research output: Contribution to journalArticle

Sacks, FM, Obarzanek, E, Windhauser, MM, Svetkey, LP, Vollmer, WM, McCullough, M, Karanja, N, Lin, PH, Steele, P, Proschan, MA, Evans, MA, Appel, L, Bray, GA, Vogt, TM, Moore, TJ & DASH Investigators, I 1995, 'Rationale and design of the Dietary Approaches to Stop Hypertension trial (DASH). A multicenter controlled-feeding study of dietary patterns to lower blood pressure', Annals of Epidemiology, vol. 5, no. 2, pp. 108-118. https://doi.org/10.1016/1047-2797(94)00055-X
Sacks, Frank M. ; Obarzanek, Eva ; Windhauser, Marlene M. ; Svetkey, Laura P. ; Vollmer, William M. ; McCullough, Marjorie ; Karanja, Njeri ; Lin, Pao Hwa ; Steele, Priscilla ; Proschan, Michael A. ; Evans, Marguerite A. ; Appel, Lawrence ; Bray, George A. ; Vogt, Thomas M. ; Moore, Thomas J. ; DASH Investigators, Investigators. / Rationale and design of the Dietary Approaches to Stop Hypertension trial (DASH). A multicenter controlled-feeding study of dietary patterns to lower blood pressure. In: Annals of Epidemiology. 1995 ; Vol. 5, No. 2. pp. 108-118.
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