My local branch of Waitrose was selling off hams, so I bought one. Looks like I may have got more than I bargained for:
Now, how they manage to concentrate 102 grams of pork into 100 grams of ham I can only guess at.
Perhaps there are different isotopes of Pork - and they've worked out a way to separate the different isotopes? Yes, that's clearly it - they're selling Enriched Ham!