Seaweed was common food in Europe for thousands of years, researchers find

Study discovers telltale signs on human teeth from Spain to Lithuania, spanning period from 6400 BC to 12th century AD

It may be considered an unusual ingredient in western cuisine, cropping up in a fancy cookbook or local delicacy. But it turns out that seaweed was a common foodstuff among people in Europe for thousands of years.

Researchers have found telltale signs of consumption on human teeth at sites from Spain to Lithuania, spanning a period from around 6400BC to the early middle ages.