Drink taboo remember coffee should not be served with tea

1. Remember that coffee should not be served with tea. Tannin in tea and coffee reduces iron absorption by 75%. It should be taken with warm boiled water;

2. Tannic acid in tea and coffee reduces calcium absorption. Therefore, tea and coffee time, it is best to choose between two meals;

3. Caffeine-containing beverages and foods, pregnant women drink a lot, nausea, vomiting, headaches, rapid heartbeat and other symptoms. Caffeine can also enter the fetus through the placenta and affect fetal development;

4. Many doctors believe that pregnant women drink 1 to 2 cups (6 to 8 ounces each cup) of coffee, tea or carbonated drinks a day, will not affect the fetus. But for the sake of caution, pregnant women are best banned. Caffeine can lead to an increase in abortion rates, so drink caffeine-free drinks;

5. People who want to lose weight should not drink too much coffee. Common coffee mate contains more milk, sugar and fat, coffee itself may stimulate gastric secretion, enhance food digestion and absorption, not only can not thin waist, but also make people fat;

6. Children should not drink coffee. Caffeine can excite children's central nervous system, interfere with children's memory, resulting in children with ADHD;

7. Strong tea, coffee, carbonated drinks are also risk factors for the formation of digestive tract ulcer disease;

8. When you're nervous. Caffeine improves alertness, agility, memory and concentration. But drinking more coffee than you're used to can produce stimulants similar to those consumed in the same dose, which can cause nervousness. For people prone to anxiety disorders, caffeine exacerbates sweaty palms, palpitations, and tinnitus.

9. Increased blood pressure. Caffeine, because of its analgesic effect, is often combined with other simple painkillers. However, if you already have high blood pressure, taking a lot of caffeine over time will only make your condition worse. Because caffeine alone can raise blood pressure, when combined with emotional stress, it can have a dangerous multiplier effect, so people at risk for high blood pressure should avoid caffeinated beverages especially when they are under high pressure at work. Some regular coffee drinkers think they are immune to caffeine's effects, but this is not the case. One study showed that drinking a cup of coffee can raise blood pressure for up to 12 hours.

10. Osteoporosis induced caffeine itself has a good diuretic effect, if long-term and large amounts of coffee, easy to cause bone loss, bone preservation will have an adverse impact, for women, may increase the threat of osteoporosis. However, the premise is that the usual food is already lacking in adequate calcium intake, or people who do not often move, plus post-menopausal women, calcium loss caused by lack of estrogen, these conditions plus a lot of caffeine, may pose a threat to bones. If you can enjoy it in reasonable amounts, you can still do it without choking.