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Health: Moderate Alcohol Consumption Helps to Protect Against Heart Disease


#health #heart #disease #alcohol #cardiovascular

A study has revealed that moderate alcohol consumption is related to reduced cardiovascular disease risk and a reduction of mortality from all causes, in comparison to absolutely no alcohol consumption. This study to examine the heart health implications of alcohol intake involved more than 18,000 individuals older than 70 in Australia and the US.

Excessive consumption of alcohol is a major contributor to the worldwide burden of disease and a significant risk factor for mortality. Nevertheless, other studies have indicated that moderate consumption of alcohol could be linked to a reduced risk of cardiovascular disease events.

Individuals participating in the study did not have prior cardiovascular disease events, a physical disability that limited independence, or diagnosed dementia.

Cardiovascular disease events included non-fatal myocardial infarction, coronary heart disease death, non-fatal and fatal stroke, hospitalization for heart failure, and non-coronary cardiac or vascular death.

Information on consumption of alcohol such as average standard drinks every day and days of drinking every week was evaluated by a self-reported questionnaire at the start of the study.

Former consumers of alcohol who might have stopped consuming alcohol for a variety of health reasons were excluded from the study, due to a possibility of bias introduction from reverse causality.

Intake of alcohol was calculated as grams every wk based on this information, a standard drink was equal to 10g for participants from Australia and 14g for participants from the US.

Alcohol consumption for the study was categorized as 0 for never drinkers and individuals who drink 1-50 g/wk; 51-100 g/wk; 101-150 g/wk, and >150g/wk.

For Australians that corresponds to 5 standard drinks every wk; 5-10 standard drinks every wk; 10-14 standard drinks every wk and more than 15 standard drinks every wk.

For Americans that corresponds to 3.5 standard drinks every wk; 3.5-7 standard drinks every wk; 7-10 standard drinks every wk and more than 10 standard drinks every wk. Of the almost 18,000 qualified individuals participating in the study with an average age of 74 anni:

  • The average BMI was 28.1 kg/m2
  • 43.3% were former or current smokers
  • 57% were female

All individuals were monitored for an average of 4.7 yrs and it was discovered that there was a reduced risk of cardiovascular disease events for people consuming alcohol of 51-100 g/wk, 101-150 g/wk, and 150 g/wk, in comparison to never consuming alcohol, irrespective of gender. Alcohol consumption of 51-100 g/wk was also linked to a reduction in risk of all-cause mortality.

The results should be interpreted with caution according to the researchers, as the participants were all healthy at the start of the study with no prior cardiovascular disease or other severe diseases, and could have been more socially and physically active compared to the broader aging population.

Also, prior evidence has revealed that excess consumption of alcohol increases other chronic disease risks like pancreatitis, liver disease, or cancer.

So, modest intake of alcohol in this group of healthy older individuals was not harmful for cardiovascular disease or overall mortality.

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