Table 1.

Study and baseline characteristics of DASH diets.

Author/year	Design/country	Exclusion of the urate-lowering drugs	Duration (weeks)	Total sample size/population	Baseline characteristics of interventional group				Dietary facts		Changes in UA; DASH vs control6 (mg/dL, 95% CI)
					Gender, female (%)	Age, Mean (y)	HTN (%)	High baseline UA (%)	Intervention	Control
Tang et al.27	RCT/USA	N/A	12	103/Adults with pre- or stage 1 HTN	62.7	49.9	29.4	6.61	DASH5 diet	Typical isocaloric American diet	− 0.40 (− 0.79, − 0.01)
Juraschek et al.28	RCT/USA	No	8	117/Adult African-Americans with controlled HTN	65	59.2	100	302	DASH-plus diet: coach-directed, 30$/week allowance limited to high K foods (fruits, vegetables, nuts, or dried beans)	A DASH brochure & 30$/week allowance	− 0.01 (− 0.39, 0.38)
Juraschek et al.29	RCT/USA	Yes	4	43/Adults with gout (self-reported) & a UA concentration > 7 mg/dL	18	42.5	50	1003	DASH diet with 105$/week allowance of dietitian-directed groceries	self-directed grocery shopping with 15$/day allowance	− 0.51 (− 1.16, 0.13)
Juraschek et al.7	RCT/USA	No	8	327/Adults with pre- or stage 1 HTN	52.7	44.8	24.5	23.04	DASH diet with K, Mg & Ca at the 75th percentile levels of U.S. consumption, and high in fiber and protein	K, Mg, and Ca levels matching the 25th percentile of U.S. consumption, & macronutrient and fiber at the average intake levels in the U.S	− 0.25 (− 0.43, − 0.08)

RCT: Randomized Control Trial, HTN: Hypertension, UA: Uric Acid, DASH: Dietary Approaches to Stop Hypertension, CI: Confidence Interval, K: potassium, Mg: magnesium, Ca: calcium.

¹UA ≥ 6 mg/dl.

²UA > 7 mg/dl.

³UA ≥ 7 mg/dl.

⁴UA > 6 mg/dl for women or > 7 mg/dl for men.

⁵All mentioned DASH diets consist of fruits, vegetables, and low-fat dairy foods and reduced consumption of saturated fat, total fat, and cholesterol along with whole grains, poultry, fish, and nuts and restricted red meat, sweets, and sugar-containing beverages.

⁶As mentioned in the articles.