In the UK pet food has to have come from animals that were deemed fit for human consumption (I believe), so it is highly unlikely that it will contain any trace of diseased animals etc.
However, I do agree with Praia that Hill isn't a great quality food. If it suits your dog, all well and good, but you can find equal or better quality kibbles at a lower price very easily. It is very expensive for the quality of the ingredients it contains.
Sample bags are often a great way to "push" customers onto a product for which the sample giver receives commisson... and many people do think that if their vet recommends a particular food it must be the best, which is where I have a big problem with Hills, as many vets DO push it (directly or subtley) and there are objectively better quality foods out there which (whether they are better for an individual dog is a different matter... every dog is different and some foods suit some dogs better than others).
Hi, I took my 8 week old pup to the vets to have her jab & microchip yesterday & she gave me a free bag of hills science plan puppy food. Is this a good quality food or is this a silly question as the vet gave me it! I was going to change her food to James wellbeloved as I have heard this is a good quality, but I might use this hill science plan if it's on the same quality level as JWB?? Thanks
To remind us of the OP - the pup is not currently on Hills, and the OP wanted to know whether it is a comparative quality to JWB - my opinion is that JWB contains better ingredients (including named animal sources) and is a better quality dog food. It doesn't follow that all dogs will do better on JWB than Hills, but on balance JWB is a better food.
If a person's dog was happy on Hills, and the owner was happy to continue paying the price charged, I certainly wouldn't tell them they should change... but if someone was considering swapping to Hills for no other reason than their vet had given them a sample (implying it must be a good food) I would urge them to rethink.
(FWIW, Honey is raw fed... we previouly fed JWB with no ill-effects at all, but Honey prefers a raw diet!)