“The seaweed on these bare rocks is very slippery,” says Jayson Byles, as he balances on boulders at Kingsbarns Beach near Fife, in eastern Scotland. The view is pleasant now that the rain has ...

Then, this part of the North Sea is full of red, brown and large green seaweed plants. Anyone can harvest them. "Over a thousand macroalgae grow in Scotland," says Byles. "All of them edible ...

Used since ancient times, edible seaweed is back in the headlines. Some European countries use it in their dishes, others do not. How many varieties are there in the North Sea and which are eaten?

In Denmark, entrepreneurs are seeking to promote its consumption. Mads Hecter, the country's largest producer of edible seaweed, operates a nineteen-hectare farm off the coast of Kerteminde.