Drink these types of coffee to live longer, study says



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A new study found that drinking two to three cups a day of most types of coffee can protect you from cardiovascular disease and premature death.

“The results suggest that light to moderate intake of ground, instant and decaffeinated coffee should be considered part of a healthy lifestyle,” said study author Peter Kistler, head of research at clinical electrophysiology at the Baker Heart and Diabetes Institute and head of electrophysiology at Alfred. Melbourne Hospital.

The researchers found “significant reductions” in the risk of coronary heart disease, congestive heart failure and stroke for all three types of coffee. However, only ground and caffeinated instant coffee reduced the risk of an irregular heartbeat called an arrhythmia. Decaffeinated coffee did not reduce this risk, according to the study published Wednesday in the European Journal of Preventive Cardiology.

Previous studies have also found that moderate amounts of black coffee (between 3 and 5 cups per day) reduce the risk of heart disease, as well as Alzheimer’s, Parkinson’s, type 2 diabetes, liver disease and prostate cancer.

“This manuscript adds to the body of evidence from observational trials associating moderate coffee consumption with cardioprotection, which looks promising,” said Charlotte Mills, professor of nutritional sciences at the University of Reading in the UK. in a statement.

However, this study, like many in the past, was only observational in nature and therefore cannot prove direct cause and effect, added Mills, who was not involved in the study.

“Does Coffee Make You Healthy Or Do Inherently Healthier People Consume Coffee?” she asked. “Randomized controlled trials are needed to demonstrate the relationship between coffee and cardiovascular health.”

The study used data from the UK Biobank, a research database containing the coffee consumption preferences of nearly 450,000 adults who were free of arrhythmias or other cardiovascular disease at the start of the study. They were divided into four groups: those who enjoyed caffeinated ground coffee, those who chose decaffeinated coffee, those who preferred caffeinated instant coffee, and those who did not drink any coffee.

After an average of 12.5 years, the researchers examined medical and death records for reports of arrhythmias, cardiovascular disease, stroke, and death. After adjusting for age, diabetes, ethnicity, high blood pressure, obesity, obstructive sleep apnea, sex, smoking, and tea and alcohol consumption, the researchers found that all types of coffee were linked to a reduction in death from any cause.

The fact that both caffeinated and decaffeinated coffee was beneficial “might suggest that it is not simply caffeine that might account for any associated risk reduction,” said Duane Mellor, a registered dietitian and senior lecturer at Aston University Medical School in Birmingham. the United Kingdom, in a statement. He did not participate in the study.

“Caffeine is the best-known constituent of coffee, but the drink contains more than 100 biologically active components,” said Kistler, who holds joint appointments as a professor of medicine at the University of Melbourne and Monash University.

“It is likely that non-caffeinated compounds were responsible for the positive relationships observed between coffee consumption, cardiovascular disease and survival,” Kistler said.

Drinking two to three cups of coffee a day was linked to the greatest reduction in premature death, compared with people who didn’t drink coffee, the release said. Ground coffee consumption reduced the risk of death by 27%, followed by 14% for decaffeinated coffee and 11% for instant caffeinated coffee.

The link between coffee and a reduced risk of heart disease and stroke was not as strong: drinking two to three cups a day of ground coffee reduced the risk by 20%, while the same amount of decaffeinated coffee reduce risk by 6% and instant by 9. %.

The data changed when it came to coffee’s impact on irregular heartbeat: four to five cups a day of caffeine Ground coffee reduced the risk by 17 percent, while two to three cups a day of instant coffee reduced the likelihood of arrhythmia by 12 percent, the release said.

A limitation of the study was that coffee consumption was self-reported at a single point in time, said Annette Creedon, a nutritional scientist and manager of the British Nutrition Foundation, which is part-funded by food producers, retailers and food companies. food services

“This study had an average follow-up period of 12.5 years during which many aspects of the participants’ diet and lifestyle may have changed,” Creedon said in a statement. She was not part of the investigation.

Also, coffee can produce negative side effects in some people, he added. People with sleep problems or uncontrolled diabetes, for example, should check with a doctor before adding caffeine to their diets.

These negative side effects “may be particularly relevant for people who are sensitive to the effects of caffeine,” Creedon said. “Therefore, the results of this study do not indicate that people should start drinking coffee if they are not already drinking it or that they should increase their consumption.”

Most studies focus on the health benefits of black coffee, and don’t take into account the added sugars, creamers, milks, and processed additives that many people use in coffee.

“A simple cup of coffee, maybe with a little milk, is very different to a big flavored latte with added syrup and cream,” Mellor said.

In addition, the way coffee is brewed can also affect its health benefits. Filtered coffee traps a compound called cafestol that exists in the oily part of the coffee. Cafestol may increase bad cholesterol or LDL (low-density lipoprotein).

However, using a French press, Turkish coffee maker, or boiling coffee (as is often done in Scandinavian countries), does not remove cafestol.

And finally, the benefits of coffee don’t apply to children: Even teenagers shouldn’t drink colas, coffees, energy drinks, or other beverages with any amount of caffeine, according to the American Academy of Pediatrics.

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