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Why do old cats get skinny?

Author

James Craig

Published Jan 07, 2026

Elderly cats can lose weight because their metabolism slows down, so it becomes difficult to process food, resulting in reduced consumption. Also, they're less physically active, so they start to lose muscle mass and appear to start wasting away.

Is it normal for older cats to get skinnier?

Yes, it is normal for an old cat to get skinny.

This loss is sometimes easily attributed to obvious disease, but in many cases, there are no obvious signs of illness and routine diagnostic approaches fail to reveal evidence of an underlying problem.

Why is my old cat so skinny all of a sudden?

Common GI problems that produce weight loss in cats include inflammatory bowel disease, food allergies, or certain infections. Intestinal parasites. Also known as worms, intestinal parasites may be the cause of your cat's unintentional weight loss.

How do you fatten up an old cat?

8 Tips to Fatten a Cat the Healthy Way

  1. Use Kitten Canned Food. ...
  2. Prefer Canned or Wet Food Over Dry Food. ...
  3. Increase the Food Amount Gradually. ...
  4. Supplement Fish Oil. ...
  5. Offer Healthy Homemade Treats and Prices. ...
  6. Make The Food More Attractive. ...
  7. Have More Than One Option. ...
  8. Keep An Eye On Sensitivities and Intolerances.

What to feed an older cat that is losing weight?

Raw or “gently cooked” fresh food is an excellent diet for elderly cats. Dr. Becker recommends that if it is impossible to feed raw that dehydrated or freeze-dried balanced food reconstituted with plenty of water is good second choice. However, feeding an all dry-food diet in the long run will cause problems.

28 related questions found

Why is my 14 year old cat so skinny?

Well-recognized causes of weight loss in old cats include chronic renal disease, diabetes mellitus, hyperthyroidism, inflammatory bowel disease (IBD), exocrine pancreatic insufficiency, and dental problems. Most are readily suspected and confirmed based on physical examination and routine laboratory testing.

Why is my old cat so bony?

As they age, cats are not able to digest their food as well resulting in increased nutrition requirements. If their nutrition does not meet their requirements, they will lose muscle mass resulting in the ability to easily feel the bones of their spine and hips when petting them.

How do you know if a cat is dying of old age?

You will notice your cat becoming more lethargic, sedentary and refusing to move. Their weakness will be very apparent in their hind legs, and they will also sleep a great deal more than usual.

Why is my cat skinny and bony?

There are two main causes for a skinny cat: Either they aren't eating enough, or they're expending more calories than they are taking in. They may not be eating enough due to stress, dental disease, nausea or a host of other reasons.

What's the average lifespan of a house cat?

While 13 to 17 years is the average life expectancy for an indoor cat, some live much shorter lives while others live well into their 20s. One kitty, Crème Puff, made it to the ripe old age of 38! Cats won't complain when they don't feel good.

Why is my 15 year old cat so skinny?

What's going on? Well-recognized causes of weight loss in old cats include chronic renal disease, diabetes mellitus, hyperthyroidism, inflammatory bowel disease (IBD), exocrine pancreatic insufficiency, and dental problems, to name a few.

Should you be able to feel cat's spine?

You should be able to feel your cat's ribs, spine and hipbones quite easily but they shouldn't stick out. Feel the base of your cat's tail.

What age is a cat a senior?

In recent years, feline ages and life-stages have been redefined, cats are considered to be elderly once they reach 11 years with senior cats defined as those aged between 11-14 years and super-senior cats 15 years and upwards. When caring for older cats it sometimes helps to appreciate their age in human terms.

What foods fatten up a cat?

Adding protein-rich treats between his meals is great, too! Additionally, “human food” such as cottage cheese, egg whites, vegetables or yogurt are recommended since they have extra calories and can be a yummy treat to help fatten your cat.

How do I know if my old cat is suffering?

Signs Your Cat Could Be Dying

  • Extra Hiding. Hiding is the telltale sign of illness in cats, but can be hard to define. ...
  • Not Eating. If your cat is feeling ill, she may not want to eat. ...
  • Not Drinking. ...
  • Decreased Mobility. ...
  • Behavioral Changes. ...
  • Poor Response to Treatments. ...
  • Poor Temperature Regulation. ...
  • Unkempt Appearance.

When should you put your cat down?

One of the most obvious reasons to consider humane euthanasia is when a pet has a terminal disease, such as heart failure, cancer or another incurable condition. It's important to talk to your veterinarian about how they will manage the disease — in some cases a specialist may be necessary.

What are the symptoms of a cat dying of kidney failure?

Signs of uremia include: Increased thirst, apathy, depression, listlessness, reddened eyes, skin problems, excessive or no urine production (depending on the stage of the disease), dehydration, pain, vomiting, diarrhea, loss of appetite, emaciation, bad breath, mouth ulcers, discolored tongue, muscle twitching, coma, ...

How can you tell a cat's quality of life?

By scoring your cat's pain and energy levels, appetite, mobility, and overall demeanor, you can more easily measure your feline's quality of life. Print out this form and take it to your veterinarian to go over and score each area.

Do senior cats sleep more?

Older cats tend to be less active and playful, they may sleep more, gain or lose weight, and have trouble reaching their favorite places.

Why does my 17 year old cat keep meowing?

Older cats may vocalize excessively for a number of reasons, including disorientation, loss of hearing and pain due to one or more medical conditions. (Please see our article, Meowing and Yowling, for more information about excessive vocalizing and how to resolve it.)

How skinny is too skinny for a cat?

A very pronounced spine isn't present in cats who are at a healthy weight. Determine your cat's body condition score as outlined by the American Veterinary Association. A body score of below three on a five-point scale or five on a nine-point scale indicates that your cat is underweight and may require intervention.

What breed of cat lives the longest?

Burmese. The Burmese cats also have a Siamese ancestor that may explain their tendency to live 20 to 25 years long. Some have even been known to live well into their 30s: The official record of the oldest living cat is a 35-year-old Burmese.

Do older cats drink more water?

Drinking more is a common medical problem in cats, particularly older cats. This factsheet discusses how to tell if your cat is really drinking excessively, the causes – common and rare – and how the issue may be managed.

Why do cats only live 15 years?

Scientists suggest that a combination of genetics, inbreeding, metabolism, and evolution are all components of why a dog or cat's life span is so much shorter than a human's.