If you use a good quality meat-meal based food you usually do not have to supplement your dog’s ration. In fact, it is very easy to throw the formulation of some of the specialty foods out
of kilter if you play with supplements. Unfortunately, adding a little bit of this and a little bit of that is a cultural mentality handed down from the time when pet foods weren’t complete
and needed supplementation. Breeders often advocate supplements and many send their clients home with long lists of additives – vitamins, minerals, dairy products, oils and other
lotions and potions. Many breeders will turn an absolutely deaf ear to entreaties from veterinarians or canine nutritionists who suggest a good basic ration and a minimum of supplementation.

Supplement supporters aren’t usually thinking along behavioral lines and, since they themselves rarely have difficulty house-training their dogs, don’t realize that not everyone is so knowledgeable and over-supplementation can easily produce loose stools and make good control difficult for the dog. Coat conditioners, for instance, can easily be withheld from the diet until the puppy is house-trained. The puppy doesn’t need them if he or she is eating a good quality food, and (in most breeds) the puppy coat has to grow out naturally anyway. Oils and people foods, especially those high in fat (like steak trimmings) easily “oil up” the intestines and in many cases cause stools to “slide out” quite unexpectedly.

If your breeder or pet store operator gives you a list of supplements and binds you under pain of mortal sin to use them, start asking some questions. Ask whether these supplements are necessary if you use a high-quality specialty food. Ask how these supplements will affect your house-training progress. Ask if it is absolutely necessary to add the supplements right away or if this can wait until house-training is accomplished. For instance, although the jury is definitely out on the relationship between mega doses of vitamin C and hip dysplasia (a congenital ailment that plagues many larger breeds), many breeders are routinely recommending giving the vitamin. Whether or not the vitamin helps ward off hip dysplasia, we do know that it can have a diarrheic effect on many dogs, complicating the house-training process.

Dairy products are also dangerous additives and produce runny stools in some dogs. People food should be avoided as a matter of good behavioral policy, lest the dog turn to begging at the table, but it should be especially taboo during house-training. Dog treats that are full of preservatives or dyes (often to keep a “meat center” bright red) can also throw many dogs’ innards for a loop and complicate cleanliness. Good general advice is to stay away from supplements during the house-training process and use only minimal or no additives later on, but do use a quality daily ration.