Unfortunately nowadays a lot of packaged «instant» broth powder is used (with additives etc) instead of making the broth from scratch. (nutritionfacts.org)
I use this root a lot for making broth for the natural sweetness it brings. (phamfatale.com)
You can easily make broth in a crockpot or slow cooker to avoid having to baby sit it all day. (organicallymandy.com)