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This is a blog about the scientific basis of medicine. A judo therapist reads research papers for study and writes about them.

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Hypertension and weight loss diet.

Thursday, April 29, 2021

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In this article, we will discuss hypertension and weight loss diet.

Hypertension is considered to be one of the conditions that can increase the possibility of serious health problems such as early death.

In recent years, the standard values have been changed, making people wonder what hypertension is. However, it is said that there is a relationship between high blood pressure and morbidity.Therefore, many people are making efforts to lower their blood pressure in some way.

One such method is diet therapy, and there is a study investigating how it affects the results.

The study

This is a search for studies that compare the effects of a weight loss diet with and without a weight loss diet on people with hypertension.

The reviewer was interested in the effects of diet on blood pressure and weight.

They also wanted to know how many people experienced undesirable effects, how many developed cardiovascular disease, and how many died. 

We were reviewing randomized controlled trials in which the treatment received by the participants was randomly determined.

We also assessed the reliability of the evidence found and considered factors such as how the study was conducted, the number of people involved, and whether the findings were consistent across studies. Eight studies of 2,100 people with hypertension (mean age 45-66 years) were reviewed.

The studies were conducted in the United States (four studies) and Europe (four studies) and lasted from 6 to 36 months. 

None of the studies reported useful information on the undesirable effects of adhering to a weight loss diet. 

Diets that employed weight-loss diets allowed people to lose weight and resulted in lower blood pressure compared to those who did not follow the diet.   

Not enough evidence was found to determine whether the diet affected the number of people who died or developed cardiovascular disease after the diet.

Three of the studies reported that no one died during the study.

Only one study looked at the number of people who developed cardiovascular disease. 

Reviewer's Conclusion

This second update did not find any new studies, so the conclusions remain the same. In people with primary hypertension, weight loss diets reduced weight and blood pressure, but the magnitude of the effect is unknown because of the small number of participants and studies included in the analysis. It is not known whether weight loss reduces mortality and morbidity. No useful information on side effects was reported in the relevant trials.


Semlitsch T, Krenn C, Jeitler K, Berghold A, Horvath K, Siebenhofer A. Long-term effects of weight-reducing diets in people with hypertension. Cochrane Database of Systematic Reviews 2021, Issue 2. Art. No.: CD008274. DOI: 10.1002/14651858.CD008274.pub4.

Conclusion 

For blood pressure, the results of a diet for weight loss are as described above, with the possibility of lowering blood pressure and still losing weight.

The average decrease in blood pressure was -4.5 mmHg, so it may be worthwhile to follow the diet for a long time.However, it may not be a miraculous method to achieve results since it may take at least six months to see results.

However, in terms of long term, low cost, and the possibility of discontinuing medication, I don't think there is an option not to do the diet.

If you are already on a diet and are not seeing the results you want, or if you have fallen behind, the results may be encouraging.

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