The acronyms for Hill’s Prescription Diet foods like C/D

Since one of our five cats has aquired bladder problems with crystals in his urine we are feeding all our cats now with a special diet.It’s obvious that $750 dollar vet bills are more expensive than a bag of $50. kibble.

The c/d or “crystal diet” abbreviation on the bag was the key to urinary tract health.

Bladder stones are collections of mineral crystals that combine together in the urinary tract.

Try reduced levels of protein, magnesium and phosphorus to help limit the building blocks of crystals and bladder stones.

Watch for it on the products bag.Prices vary a few dollars depending where you shop.

Prescription diets for urinary problems

Feline Idiopathic Cystitis (FIC), also known as Feline Lower Urinary Tract Disease (FLUTD) and Feline Urological Syndrome (FUS) is a common condition that causes bladder pain, house soiling, and in male cats a life-threatening catastrophe called urinary obstruction. Although the causes of the condition are controversial, most experts believe that diet plays a role. I am not an expert (I do not have advanced certification in veterinary internal medicine), but as an emergency vet I have seen more than my share of urinary obstruction, and I firmly believe that diet plays a role.

Diets designed to prevent FIC (such as Hills c/d, Purina UR, and Royal Canin Veterinary Diet Urinary SO) appear, in my experience, to be very effective at reducing crises associated with FIC. I recommend their exclusive use for cats with the condition.



The acronyms for Hill’s Prescription Diet foods are not difficult to figure out. The “d” always stands for diet. It was easy in the old days, before there were so many different Prescription Diets. c/d was “crystal diet,” k/d was “kidney diet,” and h/d was “heart diet.” If memory serves me correctly, when I graduated in 1980, that’s all the diets there were.


The nutritionists at Hill’s figured out that not only could struvite problems be solved in cats by feeding a special diet, a dog-formulated diet would work for canines, too. Canine c/d was born, and the “c” still stands for “crystal.”  Click here for explanation of struvite.

Another thing that I did is give them only filtered water.

I wonder if this makes a difference.

Hope this helps,and it will take time for us to prove wether Hills c/d diet works for Alex.



Loving Our Cats

I don't care what you write,just be nice about it. Your comments are the source of my inspiration to keep writing.

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.