A new study suggests that coffee may do more than just wake you up from a foggy state.
Moderate caffeine intake (about three cups of coffee or tea per day) has been associated with a reduced risk of developing cardiometabolic multimorbidity.
Cardio-metabolic multimorbidity refers to the simultaneous presence of at least two cardio-metabolic diseases, including coronary heart disease, stroke, and type 2 diabetes.
“Coffee and caffeine intake may play an important protective role at almost all stages of the development of cardiometabolic multiple diseases,” said lead author Chaofu Ke, a professor of epidemiology and biostatistics at Soochow University in China.
Researchers analyzed data from about 180,000 people from the UK Biobank, which has accumulated medical and health data on more than 500,000 adults. The study participants were free of cardiometabolic disease at the start.
Researchers used information on their coffee, green tea or black tea consumption, along with hospital records and death certificates to determine whether they later developed cardiovascular disease.
According to a study published in the Journal of Clinical Endocrinology & Metabolism, participants who consumed moderate amounts of caffeine had a reduced risk of developing multiple cardiovascular and metabolic diseases. Those who consumed three cups a day had a 48.1% lower risk, while those who consumed 200 to 300 mg of caffeine (equivalent to 1.3 to 2 tall Americanos) had a 40.7% lower risk. This was compared to those who did not drink coffee or drank less than one cup a day (100 mg or less of caffeine).
The recommended daily caffeine intake for adults is 400 mg.
Coffee and caffeine consumption was inversely associated with the risk of developing multiple cardiovascular and metabolic diseases in people without pre-existing conditions.
“These findings suggest that encouraging moderate coffee or caffeine consumption in the diet of healthy people may have broad benefits in preventing multiple cardiometabolic diseases,” Dr. Kerr said.
The study provides a clearer look at the effects of caffeine on cardiovascular health because it had a large sample size and used multiple biomarkers to support its findings, Dr. Gregory Marcus, a research professor of cardiology at the University of California, San Francisco, told CNN. He was not involved in the study.
“These observations add to the growing evidence that natural caffeine-containing substances, such as coffee and tea, may promote cardiovascular health,” Dr. Marcus added.
According to Professor Kerr, the study did not take into account the effects of caffeine found in soda or energy drinks.
Dr. Marcus also pointed out the limitations of the study. Because it was an observational study, it could only show the association between caffeine and cardiovascular health, and other factors could be responsible for the improvements in cardiovascular health, he noted.
“For example, people who consume more of these substances may tend to have healthier diets or engage in more physical activity,” the explanation goes.
He also warned that excessive caffeine intake can actually be harmful.
“Although the amounts of caffeine, coffee and tea described in this study may indeed be beneficial, there is also strong evidence that high doses of caffeine, particularly those found in artificial mixtures such as energy drinks, can actually be harmful and even cause dangerous heart rhythm problems,” Dr. Marcus said.
Reporter Park Hae-sik, Donga.com [email protected]
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2024-09-20 19:56:29