Pulled deli ham from the fridge and noticed a rainbow-like shine on the slices. Is that normal?

1. of caution.

When purchasing deli ham, choose a reputable supplier and check that the product is within its expiration date. Opt for ham that is pre-packaged or freshly sliced in-store, and avoid meats that appear discolored or have an off smell.
For storage, keep deli ham in the coldest part of your refrigerator, ideally in a sealed container or tightly wrapped to prevent exposure to air. Consuming the ham within three to five days of opening will ensure optimal freshness