Are there any dishes or foods that used to be eaten a lot throughout history that are not consumed now or consumed less frequently? If so, what was the reasoning behind not eating those foods or dishes?

by TJ4President

I got to thinking: there are dead languages, dead fashion trends and even dead religions (sort of...), but are there any dead foods?

Also, thank you guys for your answers a head of time.

CommodoreCoCo

Is there a particular area you're interested in? You'll get better answers that way.