Robust statistically significant effects were found for improved diet , aerobic exercise , alcohol and sodium restriction , and fish oil supplements : mean reductions in systolic blood pressure of 5.0 mmHg [ 95 % confidence interval ( CI ) : 3.1 - 7.0 ] , 4.6 mmHg ( 95 % CI : 2.0 - 7.1 ) , 3.8 mmHg ( 95 % CI : 1.4 - 6.1 ) , 3.6 mmHg ( 95 % CI : 2.5 - 4.6 ) and 2.3 mmHg ( 95 % CI : 0.2 - 4.3 ) , respectively , with corresponding reductions in diastolic blood pressure .
Relaxation significantly reduced blood pressure only when compared with non-intervention controls .
We found no robust evidence of any important effect on blood pressure of potassium , magnesium or calcium supplements .
Available evidence does not support relaxation therapies , calcium , magnesium or potassium supplements to reduce blood pressure
PURPOSE To quantify effectiveness of lifestyle interventions for hypertension .
Promising hypotensive effect of hawthorn extract: a randomized double-blind pilot study of mild, essential hypertension.
This pilot study was aim ed at investigating the hypotensive potential of hawthorn extract and magnesium dietary supplements individually and in combination , compared with a placebo .  Thirty-six mildly hypertensive subjects completed the study . At baseline , anthropometric and dietary assessment , as well as blood pressure measurements were taken at rest , after exercise and after a computer ' stress ' test . Volunteers were then r and omly assigned to a daily supplement for 10 weeks of either : ( a ) 600 mg Mg , ( b ) 500 mg hawthorn extract , ( c ) a combination of ( a ) and ( b ) , ( d ) placebo . Measurements were repeated at 5 and 10 weeks of intervention . There was a decline in both systolic and diastolic blood pressure in all treatment groups , including placebo , but ANOVA provided no evidence of difference between treatments . However , factorial contrast analysis in ANOVA showed a promising reduction ( p = 0.081 ) in the resting diastolic blood pressure at week 10 in the 19 subjects who were assigned to the hawthorn extract , compared with the other groups . Furthermore , a trend towards a reduction in anxiety ( p = 0.094 ) was also observed in those taking hawthorn compared with the other groups . These findings warrant further study , particularly in view of the low dose of hawthorn extract used
Robust statistically significant effects were found for improved diet , aerobic exercise , alcohol and sodium restriction , and fish oil supplements : mean reductions in systolic blood pressure of 5.0 mmHg [ 95 % confidence interval ( CI ) : 3.1 - 7.0 ] , 4.6 mmHg ( 95 % CI : 2.0 - 7.1 ) , 3.8 mmHg ( 95 % CI : 1.4 - 6.1 ) , 3.6 mmHg ( 95 % CI : 2.5 - 4.6 ) and 2.3 mmHg ( 95 % CI : 0.2 - 4.3 ) , respectively , with corresponding reductions in diastolic blood pressure .
Relaxation significantly reduced blood pressure only when compared with non-intervention controls .
We found no robust evidence of any important effect on blood pressure of potassium , magnesium or calcium supplements .
Available evidence does not support relaxation therapies , calcium , magnesium or potassium supplements to reduce blood pressure
PURPOSE To quantify effectiveness of lifestyle interventions for hypertension .