Why Do People Bring Cream Crackers When Visiting a Patient?

I've noticed that it's a common practice for people to bring cream crackers when visiting someone in the hospital or recovering at home. Is there a specific reason behind this?

Are there any actual health benefits to cream crackers, or is it more of a cultural/traditional gesture? Would love to hear if this has any historical, nutritional, or symbolic significance!

What are your thoughts or experiences with this?