[신혜경의 커피톡 (58)] Does Coffee Affect Cardiovascular Disease?

Since 2011, I have been working as a judge for the Korea Coffee Association Barista Certification Practical Test. The Korean Coffee Association Barista Practical Test evaluates the sensory field as well as the technical evaluation. The technical evaluation evaluates whether the operation of coffee extraction using a coffee machine is operated properly, and the sensory evaluation evaluates the taste of the extracted coffee by providing the extracted coffee to r judges as if they were provided to customers. Therefore, for the practical examination, judges are needed who evaluate each area, and two judges, including the senior judge, usually perform the evaluation in a group. The sensory field evaluation is a very laborious task as all test takers have to taste and evaluate the extracted coffee one by one. The senior judges are mainly responsible for the sensory field evaluation.

Practical exams are usually held 3 days a week on Friday and Saturday, and in the author’s case, I participated as a judge for the whole 3 days at the beginning, and as a senior judge, I did a lot of evaluation in the field senses . As a result of a recent medical examination, he was diagnosed with hyperlipidemia during the early period of taking medication. It was thought that there was no specific problem with the diet, so I wondered if coffee had an effect on hyperlipidemia, so I searched related papers and looked into it.

According to the 2012 master’s thesis “Relation between coffee consumption and blood cholesterol in healthy Korean adult males” from Yonsei University Department of Medicine, Yonsei University, a positive correlation between coffee consumption and blood total cholesterol and LDL-cholesterol compared to the group with low. drinking coffee has been shown to affect Jeong Ji-yeon, among the subjects of the National Health and Nutrition Examination Survey, surveyed 722 healthy adult males over the age of 20, through questionnaires, physical measurements, and blood tests, in four groups (do not with drinking at all, less than 1 cup a day, 1 cup a day, 2 cups a day) As a result of the analysis by dividing into two groups, it was suggested that drinking a lot of coffee could instead have an effect on hyperlipidemia.

Also, in 2009, Choi So-young Ewha Womans University Graduate School of Clinical Health Sciences Masters ThesisThe relationship between green tea and coffee consumption and blood lipid profile” As a result of comparing the blood lipid levels of the consumption of green tea and coffee, it was concluded that the consumption of coffee has an effect on total cholesterol and low density lipoprotein cholesterol among blood lipid levels. In other words Total cholesterol and low density lipoprotein cholesterol they take coffee is affected by the size. Therefore, when comparing the intake of green tea and coffee, you have been advised to choose green tea if you want to prevent and control cardiovascular diseases including hyperlipidemia.

However, there are also papers with conflicting conclusions.

2004 Registered in the Korean Journal of Food Science and Technology Kang Geum and other researchers According to the paper “Effect of adding coffee to a high-fat diet on body weight, blood lipid, Leptin concentration, and adipocyte size in rats,” the concentration of coffee was reduced to 0.6 in the control group fed only high fat . rat diet and the high fat diet. %, 1.2% and 2.4% (w/w) of the experimental groups were bred for 6 weeks, and the concentration of weight gain, body fat, plasma triglyceride, cholesterol, HDL-cholesterol, free fatty acid and Leptin ( enough food When ingested, it refers to a hormone that controls appetite by binding to hypothalamic receptors to feel full. If the concentration is low, it causes hunger and obesity) and cell size fat in epididymal adipose tissue was analyzed. According to the results, the coffee concentration of 0.6% did not have a significant effect on the high fat diet, but instead increased body weight and body fat compared to the control group, and increased the concentration of triglycerides and total cholesterol in significant, which are the causes of circulatory system diseases. . However, the concentration of Leptin was high, which gave a feeling of satiety, so it was effective for diet control. On the other hand, the concentration of HDL-cholesterol, which prevents diseases of the circulatory system, was significantly increased in the mice that consumed 2.4% coffee, and the arteriosclerosis index also showed a tendency to be lower than the control group. However, due to the active diuretic action, the concentration of Leptin was reduced, which made people feel more hungry than full. These results suggest that drinking a lot of coffee on a high-fat diet may be more beneficial for circulatory disease than no or less coffee.

In addition, Kim Eun-kyung et al., published a paper on “Effect of Coffee and Frequency of Green Tea Consumption on Levels of Hepatitis and Metabolic Syndrome in Koreans” in the Journal of the Korean Society of Industry-Academic Technology in 2012. Among approximately 48,000 people of all ages who took the National Health and Nutrition Examination Survey, adult men and women between 19 and 79 years of age in Korea showed that their lifestyle habits of consuming coffee and green tea showed that the serum AST and ALT ( It is a scale, the higher the number, the more damage to the liver) and the effect on metabolic syndrome. As a result, when more than one cup of coffee was consumed daily, the incidence of hypertension, abnormal fasting blood sugar, and hyperlipidemia was reduced, and the incidence of metabolic syndrome was also significantly lower. In the group that consumed two or more cups of coffee per day, total energy intake and body mass index were increased, but high blood pressure, hyperlipidemia, and fasting blood sugar were significantly reduced, and the incidence of syndrome was reduced metabolic too. Specifically, the higher the coffee drink, the lower the serum AST. On the other hand, increasing the frequency of green tea intake had no effect on serum AST and ALT. That is, they found that drinking a lot of green tea was not associated with body mass index and the prevalence of metabolic syndrome, but it was confirmed that the serum AST level of those who consumed a lot of coffee was reduced.

The results of all the papers reviewed above are not consistent and cause confusion. In addition, there is no mention of how the coffee was extracted, only the use of coffee. The content of lipids in the extracted beverage varies greatly depending on the coffee extraction method. If you extract using pressure with a coffee machine, many lipid components are added in the drink. The lipid component can be filtered out by extracting drops using a paper filter. Therefore, it is unfortunate that a more accurate analysis would have been possible if the study had been conducted taking into account the coffee extraction method used by coffee drinkers.

In Korea, adults over the age of 20 drink more than 385 cups of coffee a year. Except for non-coffee drinkers, coffee drinkers drink at least 2-3 cups a day. Now that I drink a lot of coffee, I need to know exactly how coffee affects my health and enjoy coffee. Although many papers have been published on the health promoting effects of coffee, Research on the effect of coffee on cardiovascular diseases, such as hyperlipidemia, is still scarce, to the extent that domestic studies on the relationship between coffee and cardiovascular disease have produced contradictory results. It is hoped that further studies will be carried out on the correlation between coffee and cardiovascular disease.

※ Manuscripts from external authors may not match the editorial direction of IT Chosun.
Columnist Shin Hye-kyung majored in educational engineering at Ewha Womans University and received a doctorate in public health with a coffee industry major at Seoul Venture Graduate University. He has served as an assistant professor in the Confectionery Barista Coffee Department at Dongwon University of Science and Technology and the Hotel Sommelier and Barista Department at Jeonju Jeonju University. He is a member of the first-class practical evaluation of baristas, the chief editor of the Academic Committee of the Korea Coffee Association, and a director of the Korea Coffee Association. He runs a cafe called ‘Gem in Brown’ in Seocho-dong and ‘Shin Hye-kyung Coffee Academy’ in Seokchon-dong. , , there are
cooykiwi1@gmail.com

Leave a Reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.