The liver: A multifunctional organ exposed to multiple risks
Your cat’s liver is a vital organ that carries out a number of metabolic functions.
As the body’s natural filter, the liver retains and eliminates potentially toxic substances in your cat’s bloodstream, e.g., the waste by-products of protein metabolism.
Nutrient-rich blood from the intestines is also carried through the liver, which converts these nutrients so they can be readily used. In addition, the liver transforms proteins, fatty acids, and carbohydrates into energy—energy that all the cells in your cat’s body need to function.
The liver does a lot of pretty important jobs, doesn’t it?
The downside is that this also puts your cat’s liver at risk from certain harmful substances. Fortunately, this exceptional organ has a high regenerative capacity that allows it to repair the damage.
What are the substances and hazards that pose the greatest threat? The list includes:
- Infection
- Medicine
- Toxic substances ingested by your cat
- Poor blood circulation due to a heart or genetic condition
The most common cause of liver disease in cats is hepatic lipidosis, or fatty liver disease.
This ailment is characterized by an excessive accumulation of fat in your cat’s liver cells. It almost always occurs following a period of acute anorexia—when your cat avoids eating—caused by another condition, such as:
- Laryngitis
- Tooth abscess
- Fever
- Severe pain
Your cat is at higher risk of developing this complication if they’re overweight.
If the liver damage is extensive enough to prevent the organ from functioning normally and undermines its ability to repair itself, you may notice clinical signs in your cat, the most common being:
- Loss of appetite
- Nausea and vomiting
- Sudden weight loss
- Depression or lack of energy
- Jaundice (a yellowing of the gums, the whites of the eyes, or the skin)
Your cat’s liver needs energy and nutrients to be able to regenerate.
If your cat has hepatic lipidosis, their body needs proteins to transport fatty acids out of the liver and make them available to other organs.
And in order to get better, your cat needs food so the liver gets the energy and nutrients it needs to regenerate—no easy feat if your cat refuses to eat! In extreme cases, force-feeding or a feeding tube may be necessary.
Another issue is that if your cat’s liver isn’t working properly and their diet contains an excess amount of certain nutrients that need to be converted, it could make things worse.
As you can see, this can become a vicious cycle, but feeding your sick cat a carefully balanced diet can go a long way to making things better. Food formulated to the specific needs of their liver condition is the key to helping your cat recover.
Some specialized veterinary foods have the right nutritional profile to keep your cat’s liver functioning properly. Ask your vet to recommend the one that’s best for your feline friend.