OMG I have never smelt anything so bad...ever I opened two packs this morning and both were rancid! We have just switched our pup onto ND and now im re-thinking it and I might head over to WW trays. I rang ND and she said that this does happen sometimes even though the packs appear sealed. I have 16 more packs which i now dont want to open :huh: I have emailed vetuk as ND suggested and am waiting to hear back...has anyone else had this problem? Ugh i feel sick!