Feline Hepatic Lipidosis (Fatty Liver Disease)

1 Understanding Feline Fatty Liver Disease

1. Why cats develop fatty liver disease

Hepatic lipidosis (often shortened to HL) is the number-one liver disease diagnosed in cats, and it shows up most in pampered house cats. Why this happens still has no definitive answer — many theories exist but none are proven, so it remains something of a mystery.

The disease does not resolve on its own; it needs timely diagnosis and treatment, or it can be fatal. It affects cats of any age or breed, regardless of how valuable or how old the cat is.

2. Is fatty liver really about ‘starving’?

Many people think fatty liver is caused by not eating. Is that true? The reality is more complex. Many feral cats lose a lot of weight in winter when food is scarce yet never develop it — so why are pet cats so different? If ‘starvation’ is a cause, it may apply only to pet cats.

Hepatic lipidosis is more common in North America and the UK, leading some to suspect a link to the unhealthy lifestyles and diets of Western pets. The exact cause remains unknown, but what is clear is that obesity is closely tied to the disease.

3. How long without food before fatty liver appears

A pet cat that stops eating for about 3–7 days may develop fatty liver, though it varies with many factors: how overweight is the cat, and is it eating nothing at all or just a little? The fatter the cat, the higher the risk; the more complete the fasting, the faster the disease sets in. To prevent this, any diet change, food switch, or weight-loss plan must be done gradually — a cat simply cannot go without eating.

The above is a detailed look at feline fatty liver disease. We hope it helps you understand the condition better and take early steps to prevent it.