Cocoa But Not Tea Linked To Blood Pressure Reduction

The exploration be published contained by the American Medical Association memoir Archives of Internal Medicine.

Dr Dirk Taubert and colleagues from the Department of Pharmacology at the University Hospital of Cologne, Germany, investigation the medical literature in support of relating to diet effects of cocoa and black and untested tea against blood constraint completed the second 40 years.

References 1. O'Meara E, Eldrin L, Granger C, et al. Patient perception of the effect of treatment with candesartan in heart failure. Results of the candesartan in heart failure: Assessment of markdown in mortality and morbidity (CHARM) diagram. The European Journal of Heart Failure, 2 June 2005.

Looking at cocoa, they select 5 randomized controlled trials on cocoa on a complete of 173 race long-term for a median duration of 2 weeks. On analyzing the background from these trials they discovered that: -- The pooled advise systolic blood pressure for the cocoa consumers be 4.7 mm of mercury lower than for the non-cocoa consumers.

-- The diastolic digit was 2.8 mm lower.

-- These effects be satisfactorily vital to concert that cocoa was associated to reduced blood pressure.

Looking at tea, they selected 5 controlled trials wrap a total of 343 people that last for a median duration of 4 weeks. The analysis on the tea trials show that: -- The pooled mean systolic blood pressure for the tea consumers was 0.4 mm of mercury lower than for the non-tea consumers.

-- The diastolic figure was 0.6 mm lower.

-- These effects were not significant ample to show that tea was linked to splinter into in blood pressure.

The researchers concluded that "Current randomized dietary study stand for that drinking of hay loaded in cocoa may soften blood pressure, while tea intake appear to significant no effect".

Dr Taubert speculate that the flavonoid glad of cocoa is probably the copy imagined amplification for the effect on blood pressure.

He was wary to spear out that the specific studies they investigate were of broad duration, appearance at before and after effects, beneath controlled materials.

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Manufacturers of chocolate repeatedly dislocate the flavonoids because they brand the chocolate penchant rancorous. Also, the effect of milk or sugar mortal endowment in the chocolate was not examined here research.

"Effect of Cocoa and Tea Intake on Blood Pressure: A Meta-analysis." Dirk Taubert, Renate Roesen, Edgar Schömig.Arch Intern Med. 2007;167:626-634.

Vol. 167 No. 7, April 9, 2007

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