Today, we enjoy many foods that include cheese in the ingredients, such as pizza, lasagne, cheeseburgers, etc. It appears that cheese has been a favored food by humans for thousands of years - predating recorded history.
However, new research has shown international scientists that the humans responsible for the origin of our consumption of cheese in the present were actually lactose intolerant.
The scientists studied the DNA of 13 skulls of humans dating from 5,700 BC to 800 BC.
Previously, scientists had speculated that lactose tolerance evolved 7,000 years ago - when humans started making cheese - but the new research reveals that it was actually around 3,000 years ago. This means that there were around 4,000 years of lactose intolerance before our bodies adjusted.
There are still many people who suffer from lactose intolerance, which is the inability of adults to digest lactose, a sugar that's found in milk and dairy. Symptoms can include bloating, farting, diarrhoea, feeling sick, and actually being sick.