4 groups of people should not eat black beans
Black beans are a good grain with many health benefits, but many people need to be careful when eating them.
Black beans have high nutritional value, used to cook sweet soup, sticky rice or dry roasted to make tea. Nowadays, black beans are increasingly used by many people to lose weight and support metabolic disorders.
According to modern medicine, black beans contain 24.2% protein, 1.7% fat, 53.3% carbohydrates, and 2.8% ash. In addition, black beans also contain a lot of calcium, phosphorus, vitamins B, C, and amino acids necessary for the body.
In Oriental medicine, black beans are sweet and neutral; affect the spleen and kidneys, have the effect of promoting blood circulation and promoting urination, dispelling wind and detoxifying, treating jaundice and edema, abdominal and chest bloating, muscle spasms, inflammation and swelling caused by drug and chemical poisoning...

Black beans are found in many commonly used medicines such as:
To treat back pain, you can apply the following two methods:
Lesson 1: Crush 100g of black beans, stir-fry with a little vinegar, while still warm, apply directly to the painful back area, wrap with gauze and leave overnight.
Recipe 2: 1 oxtail + 50g black beans, simmer with water. Eat 2-3 times/week.
Cure blurred vision: 100g black beans, 100g black sesame. Dry roast, grind into powder, mix well. Drink 2 times a day, 2 teaspoons (8g) each time. Drink for a long time, eyes will be more comfortable or less blurred.
Cure insomnia: 30g black beans, 15g lotus seeds with the heart and fried until golden brown, 15g vông leaves, 20g mulberry leaves, 125g passionflower, 8g roasted Cassia seed. Boil to get the water to drink 1 day, drink continuously for 10-15 days. This remedy not only cures insomnia but also helps improve back pain, tinnitus, depression, lethargy, dizziness, hot flashes...
Cure for premature gray hair: This treatment is very simple. You use 50g of black beans to boil water. Then take the black bean water and steam it with 300g of Polygonum multiflorum for about 2-3 hours. Then take it out and save it for long-term use. Every day, use 15-20g in liquid form and about 5g in powder form.
Cure constipation, frequent urination: Roast black beans with crushed garlic. Then put in a pot to simmer and drink early in the morning. Use continuously for half a month.
Notes when using black beans
Black beans are good for your health, but when using them, you should not abuse them or eat too much. You should only use black beans as a beverage, 2-3 times a week, about 100-250ml each time, just enough to not make you feel full, do not use black bean water to replace daily drinking water.
People who need to limit the use of black beans or should consult a doctor first:
The first,People with kidney disease: Black bean water has a diuretic effect, so people with kidney disease should be careful when using it.
Monday,People who are taking mineral-containing medications: Black bean water contains Phytate which affects the body's ability to absorb substances. Phytate hinders the absorption of minerals such as iron, zinc, copper, and phosphorus.
Therefore, you should not use black bean water to take medicines containing iron, zinc, calcium, copper, or calcium, or use foods containing these substances... leading to anemia and osteoporosis. Ideally, the ideal time to use black beans with other foods is about 4 hours apart.
Tuesday,People with colitis, loose stools, diarrhea, and poor digestion should not use black beans. If you want to drink them, you must roast them and use them in small quantities.
Wednesday,Children and the elderly, because the protein content in black beans is very high, making it difficult for the elderly, children or people with weak constitutions to consume all the protein in black beans, easily leading to digestive problems, bloating, and stomachache.
Specialist Doctor 2 Huynh Tan Vu, lecturer of Traditional Medicine Department, University of Medicine and Pharmacy, Ho Chi Minh City