Does the Isotope Analysis Evidence Support That?

Isotope analysis suggests that people's diets were changing in britain at the end of the roman period. People are eating more oysters and shellfish and fresh water fish, but then am they're eating more sort of domestic animals. So it seems to be far more local, far more subsistence base. You're eating stuff that you're growing in your back garden and maybe trading in a local market,. But not going soper far afield to bring in your food.