edit: Why is saying a prayer before eating called "saying grace?" God has grace in giving the food but wouldn't it be man's grace if we're "saying" it? or has it come from earlier when people were "asking" grace? (these questions aren't meant to be answered here, they just give background and clarity to why I'm asking about this use of grace).
I'm primarily asking about if the term "grace" as used for a prayer on food or before eating comes from the scriptures or from a catholic tradition and what the word refers to. If the answer about the origin is or is not catholic tradition that's fine, I understand that many denominations use it today and just wanted insight into the origin/conversion from scripture to widespread use.
More on the meaning of the word grace: In LDS culture we ask people to "ask a blessing on the food". Usually the actual prayer has something like Dear Heavenly Father, please bless this food for the nourishment and strengthening of our bodies, in the name of Jesus Christ, Amen. So I was trying to compare that to "asking grace" or "saying grace".
In a comment someone said that most Christians don't consider the food blessed after saying grace which was a surprising and helpful insight along the veins I was looking for but I was trying to make this a narrow question about Catholics' view of the word grace used in this manner.
I have also been lead through this to wonder where the LDS tradition of asking a blessing on the food came from. That's a different question though.
Original: I've heard it referred to as saying grace when you say a prayer to bless the food. Which denominations do this and is it a Catholic thing? Where did it come from?