Slick, the truth of the matter is - and these days many veterinarians will tell you this - that cats should not be eating any dry food in significant quantity. The reason for this is that evolutionarily, cats are adapted to diets with at least 80% moisture and with mainly dry food they are unable to drink enough water to maintain normal hydration. Therefore they live in a state of sub-clinical dehydration, which predisposes to bladder trouble when young and kidney failure when older.
Also, if you check labels, you'll find that foods that come in pouches contain some of the most unhealthy ingredients. Wheat gluten for example, and glutens in general, are the residues of processed wheat and other grains. These glutens can cause inflammation, and eventually a malabsorption of food from the intestinal tract (gluten enteropathy) and a variety of intestinal problems.
In addition, many veterinarians will also tell you that when on a proper diet, and healthy overall, cats should not drink, and drinking is a good indicator that either there is a medical issue or more likely, the wrong diet.
I urge you to make canned food the main part of the diet and add only a very small amount of dry food if you really want to. The dry food your cat eats should just be enough for a small treat once a day, not a regular meal. And it should be high-quality, with as little grain as possible.
Here is some information for you on grains in general:
A few years ago Dr. Jean wrote an article about canned foods and in that article she said something very, very important we should always remember:
Canned food is far more similar to a cat’s natural diet, in both composition and moisture than dry food. Cats evolved as desert animals, which means that their kidneys must be extremely efficient and able to conserve most of the moisture they take in. In the wild, their water needs would be met by eating prey such as birds, rodents or insects, whose bodies contain 60-70 percent water.
They are not “natural” drinkers – studies suggest that cats will not drink water until they are significantly dehydrated. This causes their kidneys to essentially “work overtime” all the time. No wonder we see so much kidney failure in kitties! By feeding canned food, you are supplementing their water intake and giving those precious kidneys a break.