For most comparisons , the credibility of evidence was rated very low to moderate , with the exception for the DASH vs. the low-fat dietary approach for which the quality of evidence was rated high .
Conclusion : The present network meta- analysis suggests that the DASH dietary approach might be the most effective dietary measure to reduce blood pressure among hypertensive and pre-hypertensive patients based on high quality evidence
ABSTRACT Background : Pairwise meta-analyses have shown beneficial effects of individual dietary approaches on blood pressure but their comparative effects have not been established .
Objective : Therefore we performed a systematic review of different dietary intervention trials and estimated the aggregate blood pressure effects through network meta- analysis including hypertensive and pre-hypertensive patients .
Blood pressure change with weight loss is affected by diet type in men.
BACKGROUND Weight loss reduces blood pressure , and the Dietary Approaches to Stop Hypertension ( DASH ) diet has also been shown to lower blood pressure . OBJECTIVE Our goal was to assess the effect on blood pressure of 2 weight-reduction diets : a low-fat diet ( LF diet ) and a moderate-sodium , high-potassium , high-calcium , low-fat DASH diet ( WELL diet ) . DESIGN After baseline measurements , 63 men were r and omly assigned to either the WELL or the LF diet for 12 wk , and both diet groups undertook 0.5 h of moderate physical activity on most days of the week . RESULTS Fifty-four men completed the study . Their mean ( + /-SD ) age was 47.9 + /- 9.3 y ( WELL diet  , n = 27 ; LF diet , n = 27 ) , and their mean baseline home systolic and diastolic blood pressures were 129.4 + /- 11.3 and 80.6 + /- 8.6 mm Hg , respectively . Body weight decreased by 4.9 + /- 0.6 kg ( + /-SEM ) in the WELL group and by 4.6 + /- 0.6 kg in the LF group ( P < 0.001 for both ) . There was a greater decrease in blood pressure in the WELL group than in the LF group [ between-group difference ( week 12 -baseline ) in both SBP ( 5.5 + /- 1.9 mm Hg ; P = 0.006 ) and DBP ( 4.4 + /- 1.2 mm Hg ; P = 0.001 ) ] . CONCLUSIONS For a comparable 5-kg weight loss , a diet high in low-fat dairy products , vegetables , and fruit ( the WELL diet ) result ed in a greater decrease in blood pressure than did the LF diet . This dietary approach to achieving weight reduction may confer an additional benefit in reducing blood pressure in those who are overweight
For most comparisons , the credibility of evidence was rated very low to moderate , with the exception for the DASH vs. the low-fat dietary approach for which the quality of evidence was rated high .
Conclusion : The present network meta- analysis suggests that the DASH dietary approach might be the most effective dietary measure to reduce blood pressure among hypertensive and pre-hypertensive patients based on high quality evidence
ABSTRACT Background : Pairwise meta-analyses have shown beneficial effects of individual dietary approaches on blood pressure but their comparative effects have not been established .
Objective : Therefore we performed a systematic review of different dietary intervention trials and estimated the aggregate blood pressure effects through network meta- analysis including hypertensive and pre-hypertensive patients .