A recent study revealed that consuming filtered coffee can reduce the risk of type 2 diabetes by up to 60 percent. Scientists say the papers, in which filtered coffee can capture molecules that affect blood sugar levels.
Researchers compared the effects of coffee filtered and boiled, when the coffee beans were put directly into the water. Participants drank three filtered coffees a day and as a result, they were potentially 60 percent less likely to have type 2 diabetes, compared to boiled coffee fans.
"Our results now clearly show filtered coffee has a positive effect in reducing the risk of developing type 2 diabetes," said Rikard Landberg, a professor who is a co-author of the study, reported by the Daily Mail, Thursday (12/19).
Landberg says boiled coffee doesn't have that effect at all. Despite having no hard evidence, he also said that espresso coffee also did not contain that benefit.
Meanwhile, it is unknown whether instant coffee has the same benefits as filtered coffee. Further research is still needed to find this out. Instant coffee is one of the most common types of coffee consumed by the British people.
Filter coffee refers to the method in which finely ground coffee beans are placed in a filter and the filtered water passes through it. Instead, boiled coffee is made with coarsely ground coffee beans and added directly to water.
The study, conducted by Chalmers University of Technology and Umeå University, involved 842 people from the Västerbotten region in northern Sweden. Sweden is one of the countries with the highest level of filter coffee drinkers in the world and around seven percent of the population suffer from diabetes.
Half of those who join suffer from type 2 diabetes in the end. This finding was published in the Journal of Internal Medicine. Blood samples that were collected at the start of the study in the 1990s were analyzed using a technique called metabolomics.
Metabolomics enables doctors to identify blood concentrations of certain molecules, including diterpenes. This means researchers don't need to rely solely on participant food and drink diaries, which are often inaccurate.
Benefits of Drinking Filtered Coffee
Professor Landberg and colleagues found 32 markers in the blood were strongly associated with filtered coffee and 24 for boiled coffee. Using these markers, researchers can show that people who drink filtered coffee are less likely to develop type 2 diabetes.
Diterpenes are only found in the blood of boiled coffee drinkers, while filtered coffee drinkers have higher levels of phenolic compounds, which have antioxidant properties. Naturally, the pens in coffee are associated with high cholesterol, high blood pressure, heart disease, and blood vessels.
Previous studies have shown that boiled coffee increases the risk of heart and blood vessel disease, as well as high "bad" cholesterol due to the presence of diterpene.
"When you filter coffee, what you drink is what is captured in the light and as a result, you get the health benefits of many other molecules available, such as different phenolic substances. In moderate amounts, caffeine also has positive health effects, "Landberg explained.