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What is the nutritional value of coffee?
Coffee beans contain about 100 different substances, including caffeine, tannic acid, oil and nitrogen compounds. Every100g of instant coffee contains 44 ~100g of caffeine; Every 100g of brewed coffee contains 64 ~ 124mg of caffeine. Coffee is a stimulant and has many effects on human body. It can induce diuresis, stimulate the central nervous system and respiratory system, dilate blood vessels, accelerate the heartbeat, enhance the strength of striated muscles and relieve brain and muscle fatigue.

Efficacy:

1

Drinking coffee after drinking can quickly oxidize acetaldehyde converted by alcohol, decompose it into water and carbon dioxide and excrete it;

2, diuresis and dehumidification

Caffeine can promote renal function, expel excess sodium ions from the body, increase urine output, improve abdominal distension and edema, and help to lose weight. Black coffee is more diuretic.

Step 3 relieve constipation

Coffee can promote metabolic function, activate digestive organs and play a great role in constipation.

4. Appetizers

Caffeine can stimulate sympathetic nerve, stimulate gastrointestinal secretion of gastric acid, promote digestion, prevent abdominal distension and gastroptosis, and promote gastrointestinal hormones and peristalsis hormones, thus quickly relieving constipation.

5, extinguish wind and stop spasm

Coffee can increase high-density cholesterol, accelerate the metabolism of bad cholesterol, reduce coronary atherosclerosis and reduce the probability of stroke.

6 skin care

Drinking a cup of black coffee after a meal can effectively whiten the skin. Black coffee can also promote cardiovascular circulation.

7. Prevention of cardiovascular diseases

People with low blood pressure can get better by drinking a cup of black coffee every day. In the process of brewing coffee at high temperature, it will also produce an antioxidant compound, which is helpful for anti-cancer, anti-aging and even prevention of cardiovascular diseases, and can be comparable to fruits and vegetables.

8, eliminate fatigue

Caffeine is a mild stimulant, which can improve the sensitivity and attention of the human body, accelerate the metabolism of the human body, improve the mental state and physical quality of the human body, and thus eliminate fatigue.

9. Prevention of gallstones

For caffeinated coffee, it can stimulate gallbladder contraction and reduce cholesterol which is easy to form gallstones in bile. The study found that men who drink two or three cups of coffee a day have a lower risk of gallstones than 40%.

10, lose weight

Bathing with coffee powder is a kind of hyperthermia, which has the function of losing weight. Coffee can accelerate the body's metabolism and reduce fat formation. ?

Extended data

Drinking taboos:

1, drink coffee on an empty stomach in the morning.

Coffee contains more caffeine, which can stimulate gastric acid secretion and increase gastric acid concentration. At this point, after a night's rest, my stomach is empty. Hyperacidity can easily damage the gastric mucosa, causing stomach pain, heartburn and even nausea. In addition, drinking a lot of espresso on an empty stomach may also cause discomfort such as rapid heartbeat, chest tightness and palpitation.

2. Drink a lot of coffee when staying up late.

Caffeine in coffee does have a refreshing effect, but drinking it in large quantities will accelerate the metabolism in the body and accelerate the consumption of B vitamins. People who lack B vitamins are more likely to feel tired, so they will want to drink more coffee, which will form a vicious circle in the long run.

3. Drink freshly ground coffee and add a lot of sugar.

Many people can't accept the single bitter taste of freshly ground coffee, and like to add a lot of sugar to it to flavor it, turning the original healthy pure coffee into a drink similar to "instant coffee". Usually, adding two bags of 5 grams of sugar to coffee will make you feel moderately sweet, but drinking this cup of coffee will consume an extra 10 grams of sugar.

References:

Baidu Encyclopedia: Coffee