Coffee is most refreshing to drink half an hour in advance

Nowadays, coffee has become a necessary "spiritual food" for many workers, and the daily work often starts with drinking a cup of hot coffee, just to "refresh the mind and not be sleepy", but some consumers said that drinking coffee is useless
.
So, let's
take a look at the health issues about coffee.

Is freshly ground coffee or ready-to-drink coffee better?

Drinking coffee can be refreshed because caffeine can prevent the hypnotic effect of adenosine by competing for adenosine receptors in the brain and preventing "adenosine from talking to the brain", while also inhibiting the degradation
of cyclic adenylate (cAMP) by phosphodiesterase (PDEs).
Because cyclic AMP can assist in the decomposition of liver sugar, after drinking coffee, the concentration of cyclic AMP in the blood will be relatively high, which can more efficiently assist the decomposition of liver sugar into glucose, and then produce energy ATP to make people feel energetic
.

Chemically, caffeine is a substance called methylxanthine (1,3,7-trimethylxanthine), a separate ingredient that is also used as a bitter in
food processing.

Functionally, the caffeine content in freshly ground coffee will be relatively high, and the highest caffeine is coffee concentrate.

A small cup of Espresso has a lot of caffeine, so people dilute the bitterness
of coffee by adding milk, plant-based milk, and water.

In terms of taste, freshly ground coffee allows people to enjoy the aroma of coffee in the first time, while ready-to-drink coffee can save time
for production.

When is coffee most effective?

Coffee is already a necessary "spiritual food" for workers, so when is coffee most effective?

In fact, it takes time for
coffee to work.
Caffeine is almost completely absorbed within 45 minutes of coffee ingestion and peaks in blood levels within 15 minutes to two hours thereafter, spreads throughout the body and crosses the blood-brain barrier
.
The half-life of caffeine in adults is usually 2.
5-4.
5 hours, but it also varies from person to person (faster in coffee lovers).

So from the perspective of human metabolism, drinking coffee half an hour before you need caffeine may have a refreshing effect
.

Can I still drink coffee when I am pregnant?

From a metabolic point of view, pregnancy greatly reduces caffeine metabolism, especially in the third trimester, when the half-life of caffeine can reach 15 hours
.
Newborns also have a limited ability to metabolize caffeine, with a half-life of about 80 hours
.
After 5-6 months of age, the ability to metabolize caffeine per kilogram of body weight does not change
much with age.
Therefore, it is recommended that adults who are not pregnant or breastfeeding consume less than 400 mg of caffeine per day, and pregnant and lactating women should not consume more than 200 mg
of caffeine per day.
If you really want to drink, low-cost coffee products or coffee beans are an option
.

Current scientific evidence does not guarantee or recommend that caffeine or coffee can prevent disease, but for adults who are not pregnant or breastfeeding and do not have specific health conditions, moderate coffee or tea consumption can be part of
a healthy lifestyle.

(Source: Fuwai Healthy Life)

China Food News (October 17, 2022, Version 07)

(Editor: Luo Chen)