Some liquid pumped into the meat is part of the curing process for most commercial hams.
23 percent sounds like a lot, but I'm no expert.
You want a good ham, look up a Honey-Baked ham store near you. Other good foods there, too.
The only problem is that a ham is a lot of meat for two people. You get pretty tired of ham sandwiches after a while, even with really good ham.