medicine

Do you like coffee?) 

The original of the large review article:
https://pubmed.ncbi.nlm.nih.gov/34455881/

The main conclusions are as follows: 
-Coffee can contribute to the prevention of diseases associated with inflammation and oxidative stress (obesity, metabolic syndrome and type 2 diabetes)

-coffee consumption is associated with a lower incidence of several types of cancer and a reduced risk of death

-consumption of up to 400 mg/day (1-4 cups per day) of caffeine is safe.

I touched on the benefits of coffee. But how much caffeine and where is it contained?

 espresso (40 ml cup) — from 70 to 90 mg; 

in cappuccino (200 ml glass) — 70-80 mg;
in latte or Americano (250 ml serving) — from 95 to 200 mg; 

in classic coffee brewed in Turkey (100 ml cup) — from 38 to 65 mg, depending on the variety and duration of preparation. 

Even the so—called "caffeine-free" drink usually contains residual traces of the substance - from 9 to 12 mg. 

Energy drinks contain more caffeine, for example:
— Red Bull: 90 mg of caffeine, 1.2 g of taurine and 33 g of sugars; 
— Burn: 105 mg of caffeine, 300 mg of taurine and 39 g of sugars; 
— Monster Energy: 90 mg of caffeine, 720 mg of taurine and 36 g of sugars