Coffee is one of the most popular drinks in the world.
Strong aroma, mellow taste… Whether it is the student party or office workers, coffee has a large number of die-hard powder.
However, coffee hurts the stomach and is not good for the heart … Various opinions emerge one after another. For the benefit of the coffee party, Dr. Clove specially prepared this issue of the coffee truth special.
Coffee is bad for the heart?
Some people will have palpitations and headaches after drinking coffee, so the saying that coffee is not good for the heart has a long history.
However, there is great good news for those who [will die if you don’t drink coffee]:
After hundreds of years of controversy, the medical profession has confirmed that moderate drinking of coffee is actually good for cardiovascular health.
In 2014, a paper with 36 studies and 1.28 million people was released: coffee intake has a U-shaped relationship with the risk of cardiovascular diseases:
- 1.5 cups of coffee per day reduced the incidence of cardiovascular diseases by 11%. 3.5 cups per day, a decrease of 15%, will benefit the most. Five cups or more, there is no effect.
Coffee is not a magic medicine, but drinking coffee may really be a healthy lifestyle.
Drinking coffee on an empty stomach hurts your stomach?
First of all, you can rest assured that many studies have confirmed that coffee will not cause gastric ulcer and gastroesophageal reflux.
However, coffee does have some effects on gastrointestinal tract, such as increasing gastric acid secretion, relaxing esophageal sphincter, and promoting peristalsis of small intestine.
For the attitude of coffee, Dr. Clove’s advice is:
- If you want to drink coffee on an empty stomach, it is not recommended to choose black coffee. It is better to try latte with milk. If you have gastrointestinal diseases, don’t die. Eat something obediently and drink coffee again.
Drinking coffee causes calcium loss?
In theory, coffee will increase calcium loss, but the actual situation is:
Caffeine has only a short-term diuretic effect. Caffeine in each cup of coffee will only increase calcium loss by 2-3 mg. Don’t worry too much about calcium loss when drinking coffee everyday.
Moreover, if you drink milk cafe, you don’t have to worry about it. Calcium obtained from milk is more than enough to make up for milk loss caused by caffeine and oxalic acid.
Drinking coffee will turn rhubarb teeth?
Hey, this is possible.
Famous colored beverages such as coffee, tea and red wine all contain a substance called tannic acid, which is dark brown. If it acts on the teeth for a long time, it will penetrate into the inside of the teeth, causing the teeth to turn yellow.
Moreover, ordinary brushing teeth and gargling are useless for this type of [rhubarb teeth].
Don’t be sad, there are several ways to give you:
Step 1 Drink through a straw
Reduce contact between teeth and coffee, suitable for iced coffee;
Step 2: Milk
Milk contains casein, which can be combined with tannic acid, weakening the penetration of tannic acid into teeth and reducing the dyeing of teeth.
Foreigners drink more coffee than we do. Why are their teeth so white?
The size of the US tooth whitening market is 11 billion US dollars a year. Do you understand? 🙂
Coffee is best in what?
The standard answer to this question is: drink in the morning or after lunch.
Coffee at this time can resist drowsiness after meals and last for 3-4 hours. However, if you drink it after the afternoon, it may affect your sleep at night.
However, there is a new answer:
If you have the habit of taking a lunch break in the office, you may as well try to have a [coffee sleep]. After drinking coffee, take a nap for 15-20 minutes, and your spirit will be especially good and your attention will be especially concentrated.
- First, a 15-20 minute nap will not enter deep sleep, so there will be no sleep dependence and it will be easier to wake up. Second, it takes 15-20 minutes for caffeine to act on the cerebral cortex, and it is just refreshing after waking up.
How much coffee is appropriate every day?
Although coffee is good, drinking too much will still lead to sleep disorders, arrhythmia and other adverse reactions.
At present, the generally accepted health limit for caffeine intake is 400 mg per day. You can calculate it yourself:
- A Starbucks latte (large, 473 mL) contains about 200 mg of caffeine; In a small bag of instant coffee (15 g), the caffeine content is about 50 mg.
Pregnant women and lactating mothers: You can drink coffee, but halve the amount (caffeine limit is 200 mg).
As long as you pay attention to the control amount, drinking coffee during pregnancy and lactation is safe for both mothers and babies.
Think a cup of coffee is not enough to drink? Then choose decaffeinated coffee.
Children and Teenagers: It is best not to drink coffee.
Since children’s nervous system is not yet fully developed and they are more sensitive to caffeine, it is better for children not to drink coffee. For teenagers aged 13 to 18, the daily intake of caffeine should not exceed 100 mg.
Which kind of coffee is better?
If you are a frequent customer of coffee shops, suggest daily choices:
- Italian Concentrate, American: Only Coffee and Latte, Cappuccino: Only Coffee and Milk
However, mocha with cream and chocolate syrup and all kinds of vanilla latte and caramel latte with flavor syrup have very considerable sugar content and are only recommended for dessert occasionally.
If you make your own coffee, capsule coffee from Gao Da Shang, hand-made coffee from Wen Yi Fan, hanging ear coffee, or simple instant black coffee (only coffee beans are listed in the ingredient list), you can do it. Are you used to black coffee? Just add your own milk.
As for instant three-in-one coffee and canned sweet coffee, they can only be said to be [coffee-flavored sweet drinks] and belong to the next choice.
No matter what kind of coffee, please be careful: don’t be too hot, hot drinking (> 65 ℃) has carcinogenic risk.