No. Because the tannic acid in iced black tea will hinder their gastrointestinal absorption.

Taboos for drinking milk:

1. Avoid sunlight exposure

The vitamin B and vitamin C in fresh milk will disappear quickly after being exposed to sunlight. Even weak sunlight exposure for more than 6 hours will reduce vitamin B by half. Therefore, it is best to use colored or opaque containers for milk and store it in a cool place.

2. Not suitable for freezing

After milk is frozen, the fat and protein in it will separate and the casein will condense into powder. The taste of the milk will be significantly weakened and the nutrients will not be easily absorbed.

3. It is not advisable to cook at high temperature for a long time

The protein in milk will be transformed from a sol state to a gel state under the influence of high temperature, resulting in the appearance of precipitates and a reduction in nutritional value.

4. Copper should not be used for heating

Copper can accelerate the destruction of vitamin C and catalyze the chemical reactions in milk, thus accelerating the loss of nutrients.

5. It is not suitable to drink on an empty stomach

Some people think that drinking milk on an empty stomach in the morning is most easily absorbed. In fact, the milk consumed at this time will quickly convert the protein into energy. . It is best to eat something before drinking milk or drink it while eating food to ensure full absorption of milk nutrients.

Extended information:

1. Strong black tea dilutes gastric juice and prevents normal digestion

A person’s normal secretion of gastric juice is 1.5 to 2.5 liters per day. These gastric juices can Proper digestion of the food a person takes in every day. Drinking a large amount of strong black tea will dilute the gastric juice and reduce the concentration of the gastric juice, causing the gastric juice to be unable to digest food normally, resulting in indigestion, bloating, abdominal pain and other symptoms, and some may even cause duodenal ulcers.

2. Black tea hinders the body's absorption of iron

Tea contains tannic acid, about 5% in black tea and 10% in green tea. When the human body drinks a large amount of strong tea, the combination of tannic acid and iron will become more active, causing obstacles and effects on the human body's absorption of iron, causing the human body to manifest iron deficiency anemia.

3. Drinking strong black tea can easily cause constipation

The tannic acid in black tea can not only combine with iron, but also combine with protein in food to form a lumpy, Tannic acid protein that is difficult to digest and absorb leads to constipation. For elderly people suffering from constipation, constipation will become more serious.

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