Can Black Coffee Help Manage Diabetes?
A daily cup of black coffee may have a positive impact on blood sugar control in patients with type 2 diabetes,
according to recent research findings.
Certain compounds in coffee
have been found to exhibit a mechanism of action similar to diabetes medications,
which has renewed interest in the metabolic regulation effects of coffee.
Comparing Coffee Compounds to Actual Diabetes Medications
This research was reported by the Daily Mail on January 12 (local time),
citing a study published in the international journal Beverage Plant Research.
The research team compared and analyzed compounds extracted from roasted Arabica coffee
with the effects of the diabetes medication acarbose that is currently in use.
What Kind of Drug Is Acarbose?
Acarbose is a medication that slows down the rapid conversion of carbohydrates consumed after meals into glucose,
thereby preventing sudden spikes in blood sugar.
It is widely prescribed around the world
and is mainly used for patients with type 2 diabetes who need to manage post-meal blood sugar levels.
The main focus of this study was to determine whether coffee compounds have a biochemical effect similar to this drug.
How Do Coffee Compounds Prevent Blood Sugar Spikes?
Analysis showed that certain compounds in coffee
inhibit the activity of enzymes involved in carbohydrate digestion.
Through a three-step purification process, the researchers identified three new compounds that block the activity of alpha-glucosidase.
This enzyme plays a key role in breaking down carbohydrates into glucose,
and when inhibited, the rise in blood sugar after meals becomes more gradual.
The Newly Named 'Cafaldehyde'
The researchers named these three compounds 'Cafaldehyde A·B·C'.
These compounds inhibit alpha-glucosidase and slow down the rise in blood sugar,
which is nearly identical to the main mechanism of existing diabetes medications.
The research team concluded that this demonstrates coffee's potential to go beyond being a simple beverage and
play a role in metabolic regulation.
Why Higher Coffee Consumption Lowers Diabetes Risk
Numerous large-scale epidemiological studies have repeatedly shown that a higher coffee intake
is associated with a reduced risk of developing type 2 diabetes.
Some studies found that the risk decreased with each additional cup of coffee per day,
and in particular, three to five cups per day showed the most pronounced effect.
This latest research is drawing attention as biochemical evidence supporting these findings.
However, Coffee Does Not Replace Medication
Experts commented on this study,
"While the bioactive compounds in coffee may contribute to blood sugar control to some extent,
it is difficult to consider coffee a substitute for diabetes medication," they emphasized.
They also clarified that these effects are based on black coffee without added sugar, syrup, or cream,
and the foundation of diabetes management remains medication, dietary habits, and exercise.
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Edit Maeng Jiae mjiae@asiae.co.kr
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Reporter Seo Jiyeong zo2zo2zo2@asiae.co.kr
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