Lazaro B,
Hi! I also have a question posted about a similar topic, I do however know the answer to part of your last post. In regards to human vs dog probiotics the proven strains they have found that are useful in dogs are different strains than are usually found in the human probiotics. We have different types of bacteria but that doesn’t mean that those for humans are necessarily bad (people seem to think they are working) it just means that they know for sure that certain types are specific to dogs and helpful to them. You’ll notice that on the dog probiotics you will find the strains lacto salivarius, bifido bifidum, and bifido animalis etc. some of these are dog specific and not usually found in the human probiotics. One that does show up on both is the lacto acidophilus (also found in yogurt). It could be beneficial to your dog to make sure that they are getting the strains that help them the most and not what helps people the most! (I am obviously not an expert and you should always talk to your vet for anything and not rely on my opinion, I merely found this stuff while researching online so I am not reliable !)
