Coffee basic knowledge Ten taboos to pay attention to when drinking coffee

1. Remember that coffee should not be served with tea. Tannic acid in tea and caffeine reduces iron absorption by 75%. It is appropriate to use warm boiled water to deliver the service.

two。 The tannic acid in tea and coffee reduces calcium absorption. Therefore, it is best to choose between two meals for tea and coffee.

3. Caffeinated drinks and foods can cause nausea, vomiting, headache and rapid heartbeat after being consumed by pregnant women. Caffeine also enters the fetus through the placenta, affecting fetal development.

4. Many doctors believe that pregnant women drink 1 to 2 cups of coffee, tea or carbonated drinks a day (6 to 8 ounces each), which will not affect the fetus. But as a precaution, pregnant women had better forbid it. Caffeine can lead to an increase in the abortion rate, so you should drink non-caffeinated drinks

5. People who want to lose weight should not drink too much coffee. The common coffee companion contains more milk, sugar and fat. Coffee itself may stimulate gastric juice secretion and enhance food digestion and absorption, which not only can not lose weight, but also make people fat.

6. Coffee is not suitable for children. Caffeine can excite the central nervous system of children, interfere with their memory and cause ADHD.

7. Strong tea, coffee and carbonated drinks are also risk factors for digestive tract ulcer.

8. Confusing caffeine in times of stress helps to improve alertness, agility, memory and concentration. But drinking more coffee than you are used to will produce the same dose of stimulants that you are used to, which can cause nervousness. For people who tend to have anxiety disorders, caffeine can worsen symptoms such as sweaty palms, palpitations and tinnitus.

9. Aggravate high blood pressure caffeine is often combined with other simple painkillers because of its analgesic effect, but if you take it in large quantities for a long time, if you already have high blood pressure, using a lot of caffeine will only make your situation worse. Because caffeine alone can raise blood pressure, coupled with emotional stress, it can have a dangerous multiplication effect, so people at risk of high blood pressure should especially avoid drinking caffeinated drinks during stressful times at work. Some people who have a perennial habit of drinking coffee think they are immune to the effects of caffeine, but this is not the case. A study shows that blood pressure can rise for up to 12 hours after drinking a cup of coffee.

10. Induced osteoporosis caffeine itself has a good diuretic effect. If you drink a lot of coffee for a long time, it is easy to cause bone loss, which will adversely affect the preservation of bone mass. For women, it may increase the threat of osteoporosis. But the premise is that people who don't get enough calcium in normal food, or people who don't move very often, plus women after menopause, calcium loss caused by lack of estrogen, coupled with a large amount of caffeine, may pose a threat to bones. If you can enjoy it in a reasonable amount, you can still stop eating for fear of choking.