Oh, my, there’s an issue that I have never once thought to worry about.
I have noticed with some bemusement, if not dismay, how people commonly help themselves to huge amounts of catsup, especially when it comes in little packets or cups. They usually end up throwing a bunch away.
As for mustard, I don’t serve it (much less pour it) as a side dish. Either it’s added with other condiments (catsup, relish) to a burger or hot dog, or deployed carefully and sparingly (turkey sandwich), or it’s incorporated into the recipe: a small amount in, say, tuna fish salad or potato salad. So it all gets consumed.
I used to favor Gulden’s Spicy Brown too for many years, but somewhere along the line I switched to Grey Poupon. The yellow stuff of my childhood (French’s) is not for me.