How much coffee can be taken per day for those who are susceptible to high blood pressure and are not harmful? A survey conducted by 533 people in Sao Paulo and the University of Sao Paulo (USP) indicated that three or more 50ml cups could increase the probability of the problem up to four times. However, taking 3 cups will benefit and help prevent cardiovascular disease.
Nutritionist Andreia Machado Miranda said that personal habits and genetic predisposition are the only known risk factors. She and the research team investigated whether healthy people have excessive coffee drinking as a genetic predisposition to hypertension.
To this end, they used the São Paulo Municipal Health Survey (ISA-Capital 2008), based on 3,000 people. "This is a very complete study of lifestyle data, blood and DNA collections, biochemical information, and blood pressure measurement, and we have defined normal blood pressure as below 140 x 90 mmHg, rather than hypertension," the researchers explained .
The researchers calculated the genetic risk score and analyzed participants' coffee intake (less than 1 cup, 1 to 3 cups, more than 3 cups) in addition to blood pressure.
"Average coffee consumption per day was 2.5 cups, none of the participants reported reported coffee with no espresso coffee and no personal consumption of 4. Coffee is complex, which means that more than 2,000 compounds, such as caffeine, It consists of. "
Studies have shown that genetic scores were the highest, and those who drank more than 3 cups of coffee were four times more likely to have hypertension than those who did not.
"Because most people do not know if they have a postmark, they are data from tests that are not normally performed, so we can figure out the appropriate consumption of the entire population as coffee," Andreia says. I have already done research on the effects of drinking.
"In all of our studies we have found a protective effect against cardiovascular disease, coffee is rich in polyphenols, bioactive compounds that act only on the body and are present only in food originating in plants, not on organisms. Several studies have shown that it contributes to the reduction of chronic diseases such as cardiovascular disease. Antioxidant ability improves vasodilation and does not increase blood pressure. "
Another study conducted by Andreia points out that intake of 1-3 cups a day is beneficial to cardiovascular health, such as the regulation of amino acids, homocysteine, associated with strokes and strokes.
This study, supported by the Sao Paulo Research Foundation (FAPESP), is published in the journal Clinical Nutrition.
The next step in this study is to determine the impact of coffee consumption on patients already with cardiovascular disease. "We now have an acute myocardial infarction or unstable angina pectoris, and we will have an impact on how it will affect the survival of these patients," he said.
Data were analyzed for 1,085 patients at the USP University Hospital for four years.