I come from a back packing background & am very familiar with the dried, repackaged methods. But cruising east coast NA is different. You are never more than 1-2 days from a store. After several years of summer and tropical cruising, the only bugs we worry about on board are no see-ums (sand gnats) -early am & dusk. Living in SC, we know corrugated cardboard boxes, can be a vector for cockroaches, so we avoid them. Box board (cereal & cracker boxes etc.) don’t seem to be a vector since they don’t have the corrugated ridges to hide in.
On the loop, your biggest concern will be making enough ice whilst anchored or moored to a lock wall to keep your beverages really cold! Simplify, take what you usually like (& eat) then be prepared for new stuff along the way.
Finally, From one who pan fries bacon most mornings when cruising, Despite previous suggestions, I would suggest you try the “precooked” variety before stocking up. YMMV! Bacon is available universally it seems, we haven’t found a single (even tiny) store in the Bahamas that wasn’t well stocked this year or last.