An evening snack for verbivores

Four days into November and I'm already diverging from my 3 projects plan. But it's Sunday evening and I'm just not up to reading fine print journal articles. How about you? I didn't think so. Perhaps what our brains need is a mental challenge of a completely different sort -- like vocabulary-building.

What theme unites these 5 not-so-common words featured on A.Word.A.Day last week?

Verjuice
Jentacular
Cibarious
Macaronic
Xerophagy 

Hint: there is probably some sort of nutrition connection if I'm featuring them here. Check your answer by clicking on these links: verjuice, jentacular, cibarious, macaronic, xerophagy.