What Causes a Cat to Lose Weight?

If you notice your cat losing weight, this could be from a minor problem or caused by an underlying medical condition. Providing your cat with nourishing dry cat food and supplements is one way to ensure that your cat stays healthy. However, if your best efforts are not producing a healthy feline, take her to the veterinarian for a check up. Blood work may be needed to determine if a health problem is causing her to lose weight.

  1. Parasites

    • According to the ASPCA, an aggressive parasite infestation can cause your cat to lose weight. There are several different types of worms that induce weight loss such as tapeworms and roundworms. The parasites leach nutrients from your cat's body, compromising nutrition. Cats usually get worms from contaminated food and water, but parasites can also be transferred from a mother to her kittens during the nursing phase.

    Cancer

    • Cancer attacks the body, which results in weight loss, fatigue and other health problems. Cats can develop cancer just like humans. As the cancer spreads, your cat will become more lethargic and drop weight quickly. Cancer treatments are available if the condition is detected in the early stages.

    Poor Appetite

    • Another cause of weight loss in cats is poor appetite. If your cat is not eating properly, he will begin to lose weight. A poor appetite is triggered by several things such as a traumatic event, loss of another pet or a health condition. You can try giving your cat flavorful treats with garlic to stimulate her appetite or take her to the vet.

    Age

    • Age is another cause of feline weight loss. As your cat grows older, she may begin to lose her appetite and drop weight. You can stimulate her appetite with treats or ask your vet about medications that may help.