Drinking tea has a long history in China. Drinking tea in moderation can not only replenish water, but also benefit human health.
Milk is rich in calcium, which is a good source of high-quality protein and B vitamins. Increasing the intake of milk is beneficial to the growth and development of children and adolescents and promotes the bone health of adults.
Can drinking tea lead to anemia?
There are many legends about drinking tea and digestion and absorption. Some people say that tea is not conducive to nutrient absorption, which will make people anemia, and caffeine in it will also cause calcium deficiency, so pregnant women, lactating women and menstruating women can't drink it. Is it true?/You don't say.
From the current research, it has not been found that drinking tea will bring the problem of calcium, iron and zinc deficiency.
From the metabolic study, it is not found that drinking tea will significantly affect the mineral excretion in feces and urine.
Studies have found that taking black tea extract or drinking "strong tea" may reduce the iron absorption rate. However, studies have proved that the utilization rate of iron will not be affected when tea is used instead of daily drinking water. Only when iron supplements are put into tea for drinking, or when iron-rich foods are eaten with tea, will the iron absorption rate be reduced. Among all kinds of teas, black tea has the strongest effect on reducing iron absorption rate, while green tea and flower and fruit tea are slightly weaker. Researchers believe that the effect of inhibiting iron utilization is closely related to the types and contents of polyphenols contained in tea.
Research evidence shows that tea will not affect the absorption of iron in the intestine at all. Only when iron is directly encountered, polyphenols in tea will form a complex with iron, and these iron must be "non-heme iron" to be affected by tea. Fish food contains heme iron, and its absorption rate is completely unaffected by various components in tea.
Can't tea and milk be drunk together?
Of course we can drink together!
There is also a saying that tea contains oxalic acid, and some calcium in milk will combine with oxalic acid to form calcium oxalate, which cannot be absorbed, and long-term drinking will lead to osteoporosis.
This taboo sounds reasonable, but it can't stand scrutiny at all. This is because tea is not the main source of oxalic acid compared with vegetables. The oxalic acid contained in tea is 4-6 mg/g. Generally, it takes 1-2 g of tea to brew a cup of tea, in which the most oxalic acid is 12 mg, and the loss of calcium is only 12 mg. However, 100g of milk contains about100-120mg of calcium. Even if you subtract 12 mg, it is only one tenth. There is no need to worry, not to mention the consequences of the so-called "osteoporosis".
Moreover, many studies have proved that whether it is black tea or green tea, the habit of drinking tea is conducive to improving bone mineral density, because tea contains more substances that are conducive to reducing calcium loss, such as fluorine, phytoestrogens and rich potassium.
Tea contains many chemical components beneficial to human body, such as tea polyphenols and caffeine. Tea polysaccharide, etc. Studies have shown that drinking tea for a long time is helpful to prevent cardiovascular and cerebrovascular diseases and reduce the risk of certain tumors.