Black beans are rich in anthocyanin, polyphenols and soluble fiber, which have been shown by many studies to be beneficial for metabolism and weight.
However, experts warn that overusing roasted or improperly consumed black bean water can be counterproductive, affecting digestion, blood sugar and kidney function.
According to the National Institutes of Health (NIH), polyphenol-rich beans such as black beans have the ability to improve sugar-fat metabolism, but the bioavailability of polyphenols depends on how they are prepared.
Too high a roast can partially break down the antioxidant compounds, reducing the inherent benefits of beans.
A study published in the Journal of Agricultural and Food Chemistry showed that anthocyanins in black beans help reduce fat accumulation in the liver and abdominal tissue in animal models, but the effects are obvious when used whole grains or whole-bean flour, not bean filtered water.
That is, roasted black bean water may contain very few active ingredients than expected.
Harvard T.H. report. Chan School of Public Health shows that the low amount of soluble fiber in huckwheat water will not be enough to create a feeling of fullness or reduce sugar absorption like when eating whole grains.
Even drinking a lot of bean water instead of filtered water can cause electrolyte imbalance, especially potassium.
In a recommendation published in Medical News Today, nutritionists warn people with kidney disease or who need to monitor their blood potassium levels not to drink black bean water regularly, because black beans are a food rich in potassium.
When you drink concentrated water, your body still absorbs some of this mineral.
People with a weak stomach, easily bloated or poor digestion are also advised to be cautious.
Not only that, drinking black bean water to lose weight also poses a potential risk of excessive reduction in blood sugar in some people.
Bean anthocyanin extract can reduce carbohydrate absorption, causing mild hypoglycemia in sensitive people, especially when taken on an empty stomach.
Groups of people need to be especially careful when drinking roasted black bean water
People with kidney disease, potassium monitoring or are having blood filtered.
People with a weak stomach, easily bloating, and irritable bowel syndrome.
People taking blood pressure medicine, diuretic drugs, etc.
People with cold hands and feet, low blood pressure, according to the recommendation of Traditional Medicine.
People who want to lose weight but only drink bean water instead of meals can easily lead to malnutrition and hypoglycemia.
