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Cat gained weight on urinary dry food. Can I mix wet/dry for loss?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | neutered | 10 years and 4 months old | 15.5 lbs

My cat is a 10 year old male who used to eat mostly store brand wet food. The vet found crystals in his urine and prescribed him dry prescription food for urinary care. He’s very long and it was recommended that his weight should be about 12 lbs. A year ago he was 14 lbs, and since switching to this all dry diet, he’s up to 15.5 lbs after a year. I’m increasingly worried about his weight. Is it ok to feed him a combination of wet and dry food for urinary care AND weight loss of the same brand?

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1 Answer

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Answered By Dr. Leigh, DVM

Veterinarian

Published on May 29th, 2021

The best way to maintain his weight at 12 lbs is to measure his food and count the calories. A typical 12 lb cat should eat about 230 calories total in a day. Look at the calorie content of the food your vet prescribed and feed based on the calories per cup or per can. It is probably fine to switch to urinary care with weight management but you should check with your vet first since it is prescription diet. I would also recommend asking your vet about feeding some canned urinary food as most cats with crystals should be fed canned food, too.

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