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How does alcohol affect blood pressure?

For comparison purposes, participants who had received medical information that at some point in their life they had hypertension were excluded. The results found were similar to those found in the present study, with a small reduction in power due to the sample size, mainly in the most frequent consumption categories. Odds ratio for high systemic blood pressure according to the pattern of alcohol consumption. Odds ratio for elevated systemic blood pressure according to alcohol consumption.

blood pressure and alcohol

The frequency of binge drinking in this study (25,3%) was close to values estimated by WHO (22%) . However, it was higher than the values found in the National Survey of Health 2013 (13.7%) and in a Brazilian survey obtained by phone calls (VIGITEL 2014;16.5%) . This fact may be due to the differences between the survey methodologies.

Will Quitting Alcohol Lower Blood Pressure?

We conducted a standard Chi² test through Review Manager Software 5.3 to test for heterogeneity (Review Manager ). A P value of 0.1 or less was considered to show statistically significant heterogeneity. For the purposes of this review, if how does alcohol affect your blood pressure I² was greater than 50%, it was considered to show a substantial level of heterogeneity. Furthermore, we visually inspected the forest plot to check whether there were any non‐overlapping confidence intervals indicating heterogeneity.

blood pressure and alcohol

This effect, combined with the increased effects of blood pressure medicine, can lead to drops in blood pressure that can cause dizziness or even make you pass out. Alcohol is difficult for the body to process and adds stress to the liver. The liver must divert its resources to metabolizing alcohol, making it process other medicines more slowly. This can cause the medications to stay active in your blood for longer while your body is processing alcohol, which can increase the effects of the medications. Participants reported their drinking behavior on several questionnaires administered by mail and in person.

Brown 1981 published data only

We classified the remaining 33 studies as having low risk of bias because heart rate was measured and reported. We classified seven studies as having unclear risk of performance bias (Bau 2005; Bau 2011; Cheyne 2004; Dumont 2010; Karatzi 2005; Mahmud 2002; Maule 1993). Bau 2005 and Bau 2011 mentioned only that investigators and volunteers were blinded to the content of the drink but did not mention the method of blinding used in these studies.

Personnel were blinded instead of participants in Karatzi 2013, and neither personnel nor participants were blinded in Agewall 2000, so we assessed these studies as having high risk of bias. In the case of performance bias, we classified six studies as having low risk of bias, 19 studies as having high risk of bias, and seven studies as having unclear risk of bias. We calculated and reported mean difference , with corresponding 95% confidence interval (95% CI). This article is an update of “Effect of alcohol on blood pressure” in volume 2017, CD012787. The current paper, which appears in the journal Nutrients, aimed to review all current studies dealing with the association between alcohol and blood pressure.

Quality of the evidence

BP levels were considered high in presence of systolic BP ≥140 mm Hg and/or diastolic BP ≥90 mm Hg . K Health articles are all written and reviewed by MDs, PhDs, NPs, or PharmDs and are for informational purposes only. This information does not constitute and should not be relied on for professional medical advice. Always talk to your doctor about the risks and benefits of any treatment.

How does alcohol affect blood pressure?

Drinking alcohol increases blood pressure and repeated drinking causes sustained high blood pressure. Alcohol consumption is an entirely preventable cause of severe hypertension (the medical name for sustained high blood pressure) in both men and women.