New research published in the Scientific Reports describes the discovery of gene variants connected to coffee drinking. Researchers now can explain why some people need just one cup of coffee a day and others crave another one and then maybe another cup of coffee. According to new research, the amount of coffee we drink is determined by our DNA.
The authors of the study reported that among 1,200 participants from Italy, those who had genetic variant PDSS2 tend to drink fewer cups of coffee than those who didn’t have this genetic variant.
It appears that the PDSS2 gene inhibits the ability of our body to break down caffeine. Since caffeine lingers in their system longer, people with PDSS2 gene need less coffee. Researchers replicated the study in Netherlands in a group of 1,731 people. The results were similar, although participants in the second study drank fewer cups of coffee. Authors of the study are confident that they have found a gene variant connected to coffee drinking, and they would like to confirm their results on a larger group of participants.
Coffee is the most popular beverage in the world and drinking coffee has been associated with some health benefits such as reduced risk of developing type 2 diabetes, melanoma, multiple sclerosis and liver cancer.
Gildshire Editor, Elvira Barucija