1, caffeine content
The caffeine content of a cup of coffee (150ml) is generally:?
-ground coffee: about 80-90 ml?
-Instant coffee: about 60 ml?
Drinking 100-200mg of caffeine every day is enough to refresh and harmless to the body.
It's time for coffee.
It is best to drink coffee after breakfast and lunch, because it can promote the peristalsis of the stomach, help digestion and break down the high-calorie and high-fat food you eat, and will not stimulate the stomach like drinking coffee on an empty stomach. It is best not to drink coffee after meals, for fear of affecting sleep. If you want to stay up late by drinking coffee, you may unconsciously drink too much, which is not good for your health. ?
3. The benefits of coffee
(1) Coffee contains certain nutrients. Nicotinic acid in coffee contains vitamin B, and roasted coffee beans have higher content. But also free fatty acids, caffeine, tannic acid and so on.
(2) Coffee is good for the skin. Coffee can promote metabolic function, activate digestive organs and play a great role in constipation. Bathing with coffee powder is a kind of hyperthermia, which has the function of losing weight. Drinking a cup of coffee after a meal also helps digestion.
(3) Coffee has the effect of relieving alcoholism. Drinking coffee after drinking will quickly oxidize acetaldehyde converted by alcohol, decompose it into water and carbon dioxide and excrete it.
(4) Coffee can eliminate fatigue. To eliminate fatigue, we must supplement nutrition, rest and sleep, and promote metabolic functions, and coffee has these functions.
(5) Three cups of coffee a day can prevent gallstones. For caffeinated coffee, it can stimulate gallbladder contraction and reduce cholesterol which is easy to form gallstones in bile. Recently, researchers at Harvard University found that men who drink two or three cups of coffee a day have a lower risk of gallstones than 40%.
(6) Drinking coffee regularly can prevent radiation injury. Radiation hazards, especially electrical radiation, have become the prominent pollution at present. Baba's Indian atomic researchers reached this conclusion in mouse experiments and said it can be applied to humans.
(7) The health function of coffee. Coffee has the functions of resisting oxidation, protecting the heart, strengthening bones and muscles, benefiting the waist and knees, stimulating appetite, promoting eating, reducing fat and digestion, inducing resuscitation and removing dampness, promoting blood circulation and removing blood stasis, calming wind and relieving spasm.
(8) The influence of coffee on mood. Experiments show that the average person absorbs 300 mg (about 3 cups of brewed coffee) every day, which will have a good influence on a person's alertness and mood.
3. Precautions for drinking coffee
(1) Choose a suitable drinking time: The best drinking time for coffee is morning or noon, and tannic acid in coffee will reduce the absorption of calcium. Therefore, it is best to choose the time for drinking tea and coffee between meals; Don't drink coffee before going to bed.
(2) Remember not to drink coffee on an empty stomach. Drinking coffee on an empty stomach will stimulate the stomach and hurt the liver. Caffeine entering the blood is harmful to health.
(3) Remember not to drink coffee with tea. Tannic acid in tea and coffee can reduce iron absorption by 75%. Warm boiled water should be taken; Tannic acid in tea and coffee will reduce calcium absorption.
(4) Children should not drink coffee. Caffeine can excite children's central nervous system, interfere with children's memory and cause ADHD.