I looked on a Time Team special on you tube.
Time Team Special 43 (2010) – Nelsons Hospital
They pointed out when they looking on the skull of unknown 18 century burials. That they very likely where poor people.
One reason for this assumption was that the teeth was in good condition. Poor could not afford sugar. And if you where well off at that time. Would you have strong teeth decay.
I think this tells us something of sugar. And also correlate with what Weston Price studied and found.
I have added an very short article about Weston Price under LCHF-Science