How does fasting drink coffee disgusting giddy to do? Are you sure you can't drink coffee on an empty stomach?

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The function and effect of coffee and its scope of application

Drinking coffee can refresh me, why do I get dizzy-headache.

Traditional Chinese Medicine Federation / Mr. Huang: coffee, tea and cola all contain caffeine. Caffeine is arguably the most widely abused drug in the world. Does drinking coffee for a long time do harm to your health? So far, there is still a lot of controversy in medicine. In fact, caffeine is a central nervous system stimulant, and it is easy to have an impact on health when consumed in large amounts. Caffeinated beverages should not be consumed too much every day. If caffeine is consumed more than 5-10 grams a day, there will be symptoms of mild caffeine poisoning. For example: restlessness, anxiety, irritability, palpitations, nausea, general convulsions, coma. Severe brain edema, hypokalemia, or arrhythmia, heart paralysis, may be at risk of death. Recently, a well-known coffee chain has been reported to contain an average of 300 milligrams of caffeine per cup of coffee, drawing people's attention to the possible health effects of caffeine. The FDA of the United States advises pregnant women not to drink a lot of coffee for a long time. There may be problems with calcium loss. Drinking caffeinated drinks for a long time can be addictive, and the more caffeine you consume every day, the more likely you are to become addicted and the faster you become addicted. Once coffee addicts do not drink coffee, they will have withdrawal symptoms such as headache, general fatigue, yawning and so on. But as long as you bear it and don't drink for a few days, you can return to normal.

Drinking 1 cup of coffee a day in moderation is good for the body, but too much may be a problem. For example, refreshing →→ may keep you awake when you should. Diuretic →→ urine affects sleep, dry skin, stimulation of gastric acid secretion, aggravation of gastric ulcer symptoms and so on. Caffeine can stimulate the central nervous system and muscles, so it can refresh the spirit, enhance thinking ability, and restore muscle fatigue. Acting on the cardiovascular system, it can improve heart function, dilate blood vessels and promote blood circulation. For the gastrointestinal system, it can help digestion and help decompose fat. Since coffee is an irritating drink, drinking a small amount of coffee will not cause immediate harm to the human body, but excessive drinking is not good for health, so the advice to the conscience of coffee people is as follows:

1. Pay attention to calcium supplement and exercise to avoid calcium loss.

two。 Usually eat dried fish, milk, green vegetables, cheese or calcium tablets and other supplements.

3. Drink more boiled water because of diuresis to avoid water loss.

4. For those who lose weight and those with poor gastrointestinal function, do not add too much polysaccharide.

5. Coffee also reduces iron absorption in the body, so it's best to drink it before or half an hour after a meal.

6. If you just like the serenity and leisure of drinking coffee, you can consider drinking coffee without caffeine.

Who should drink less coffee?

Caffeine of pregnant women who are lactating in developing children 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. Elderly people with prefasting (or pre-meal) diarrhea with excessive stomach acid, people with stomach and duodenal stomach ulcers, people with intestinal allergy syndrome, people with mental illness after drinking alcohol, people taking tranquilizers should limit potassium intake to kidney patients.

The biggest disadvantage of coffee: it will cause calcium loss and accelerate bone loss. Drinking coffee is best after breakfast and lunch, because it can promote gastrointestinal peristalsis, help digestion, can break down high-calorie, high-fat foods, and will not cause irritation to the stomach like drinking coffee on an empty stomach. It's best not to drink coffee after dinner, for fear it will affect your sleep.

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