A cup of tea after meals, be careful to become an iron-deficiency family! A female high school student often feels tired, dizzy, and even falls asleep anytime, anywhere. After seeking medical treatment, she found out that it was related to her habit of drinking a cup of fresh milk tea with every meal, which hindered the absorption of iron!
Calcium in milk and tannins in tea or coffee can hinder the absorption of iron in the gastrointestinal tract, which is one of the main raw materials for the production of red blood cells. Therefore, if you drink tea for a long time, it is easy to cause insufficient iron in the body, unable to produce red blood cells and cause anemia.
But there are many benefits of drinking tea. For example, the polyphenols in tea can prevent cancer and enhance the antioxidant capacity of cells, especially green tea.
Fluoride in tea can reduce the fracture rate, flavonoids and plant hormones can increase bone density, and theophylline and polyphenols can also promote bone metabolism. Drinking more tea can reduce blood cholesterol concentration, prevent cardiovascular disease, improve bad breath, prevent periodontal disease and tonsillitis, and catechins can inhibit the production of uric acid and prevent gout. In addition, drinking more tea helps to eliminate body fat and help lose weight.
Since there are many benefits of drinking tea, how to drink it to minimize the impact and take into account these benefits?
The key point is to avoid the following periods when drinking tea:
- Within 1 to 2 hours after meals.
Tea contains up to 50% tannic acid, which hinders the intestinal absorption of iron.
- When the menstrual period comes.
The body needs iron to make red blood cells.
- Pregnancy.
Because the caffeine contained in strong tea can make people excited, increase the heartbeat, and have a diuretic effect, it may increase the heart and kidney load of pregnant women.
- Maternal lactation.
The tannic acid in tea is absorbed by the intestinal mucosa, which affects the blood circulation of the mammary gland, inhibits the secretion of milk, and makes the milk insufficient; in addition, the caffeine in the tea will penetrate into the milk and be absorbed by the baby, which is not good for the baby’s health.
- Women with obvious symptoms of menopause.
If you have symptoms such as rapid heartbeat, bad temper, and poor sleep, drinking too much tea will aggravate these symptoms.
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