Nutritional value of coffee

Modern medical research shows that coffee beans contain nutrients such as sugar, protein, fat, nicotinic acid, potassium, crude fiber and water.

In addition, coffee also contains caffeine, tannic acid, alkaloids and other ingredients beneficial to human health.

The health effect of coffee on human body

Coffee is the beverage that has been used for the longest time by human beings, but it is misunderstood by human beings at present. Many latest research reports show that in many ways, coffee

Because it is not harmful to human health as imagined in the past; On the contrary, some ingredients in coffee have many health-care effects on human body.

It was discovered by scientists slowly. At present, it is known that the special ingredients of coffee have the following physiological reactions to human body.

Antioxidant effect "

Coffee is rich in caffeine, caffeic acid, chlorogenic acid and other ingredients, which can effectively resist free radicals that threaten our health.

Free radicals are the main cause of many diseases, such as cardiomyopathy, arteriosclerosis, stroke, emphysema and Parkinson's disease.

Excessive free radicals will affect the metabolism of the body, destroy cells and then affect organs and tissues.

Protect the function of the heart and blood vessels.

Coffee contains high content of polyphenols, which are powerful antioxidants and can delay the oxidation of low-density lipoprotein.

Up to three times, it can dissolve thrombus and prevent thrombosis; Coffee can also enhance vasoconstriction and avoid vasodilation.

Strong and headache. In addition, a small amount of coffee can also enhance myocardial contractility, promote blood circulation, and achieve the role of preventing cardiovascular diseases.

Refreshing

Caffeine contained in coffee can stimulate the central nervous system of the brain, prolong the waking time of the brain, and make the mind clear and sharp.

And pay more attention, which can improve the efficiency of work and study.

Anti-depression: A small amount of coffee can cheer people up, make people feel happy and relieve depression.

Weight control "

Caffeine can increase the rate at which the human body consumes calories. A study shows that 100 mg of caffeine (about 1 cup of coffee) can accelerate fat.

Fat decomposition can increase the metabolic rate of human body by 3% ~ 4%, increase heat energy consumption, and have weight loss effect when drunk in moderation.

Promote digestion "

Caffeine can stimulate sympathetic nerve and increase gastric juice secretion. If you drink it in moderation after meals, it will help digestion.

diuretic

Coffee has diuretic effect, which can increase the amount of urination, thus increasing the number of trips to the toilet.

Improve constipation. "

Coffee can stimulate gastrointestinal hormones or peristalsis hormones to produce laxative effect, which can be used as a rapid laxative.

Reduce the risk of colorectal cancer Coffee contains natural antioxidants.

As a medicine, caffeine can enhance the effect of some painkillers.

Enhance physical flexibility. "

Caffeine also helps to lower the threshold of exercise and increase the agility of the body during exercise.

Let athletes create better results.

Reduce the chance of suffering from gallstones. "

A recent study by Harvard School of Public Health pointed out that people who drink 2-3 cups of coffee every day have an average of.

The chance of getting gallstones is 40% less. In addition, tannic acid contained in coffee has astringent, hemostatic and deodorizing effects.

The harm of coffee to health.

At present, there is no direct evidence that caffeine can cause osteoporosis. Some studies have found that caffeine can increase calcium excretion.

However, it is not a high risk factor for osteoporosis, but insufficient calcium intake is the main reason, so it is recommended to pay attention to calcium supplementation.

Complete intake. At present, researchers do not have enough evidence to show that coffee can affect blood lipids, blood pressure, heart disease and cancer.

The correlation of caffeine. Although drinking too much coffee may hinder the development of the fetus, it has not been confirmed whether it will lead to premature delivery or the birth of the baby.

Underweight. However, it is better to advise pregnant women to drink less coffee, because enough research has pointed out that caffeine will reduce women's chances of pregnancy.

Opportunity, increase the risk of miscarriage, slow down the development of the fetus.