Originally Posted by huskyluv
I haven't got a clue but would love to know also.
I did some googling.
Here's what THK says on the matter
"A number of pet food companies make claims that their products are ‘human quality’ or ‘table grade’, but these are not actually legally defined terms"
from Human Grade Pet Food | The Honest Kitchen
the legally defined term is either human-grade or food grade.
ETA: I also found this
"So while terms like "human grade", "human quality", "table quality" etc. may not be legally defined, they still provide some information about the quality of certain ingredients and the way they are handled before they end up in the food product. If words like "hormone free", "organic" etc. are used, it is not likely that such ingredients are feed grade or low quality." from The Dog Food Project - Dog Food Label Information 101