Is your older dog not eating as much as he used to? If so, it’s natural to worry – but not always necessary.
There are lots of reasons why Fido’s appetite isn’t up to par.
Some of them are just the result of the aging process. Others are caused by health problems (both minor & major).
So, how do you know when your old dog’s ‘appetite malfunction’ is something that needs investigating further?
This page has the answers you’re looking for. However don’t hesitate to contact your veterinarian if you feel you need help getting to the bottom of the cause. They will always be happy to help.
If you know why your older dog isn’t eating properly and he doesn’t need veterinary treatment, click here to find out what you can do to help.
Why Is My Older Dog Not Eating?
First of all, just to clarify… there is a difference between a ‘loss of appetite’ and ‘not eating’.
The Connection Between Appetite & Weight
Your dog’s weight is as important as his appetite.
A dog who isn’t eating as much as he used to but is maintaining his weight is less worrying than one who is losing weight – either consistently or suddenly (regardless of the state of his appetite).
If Fido seems to be hungry all the time and yet is losing weight, that might mean there’s a health problem such as diabetes.
Thyroid issues can put appetite and weight gain/loss out of whack too.
If your senior dog suddenly refuses to eat at all, then he needs to be seen by your veterinarian right away.
It’s also important to differentiate between an old dog who’s always been ‘picky’ and gradually becomes ‘pickier’ and one who’s previously always loved his food but now has very little appetite or couldn’t care less.
The second scenario is much more worrying than the first and needs to be taken seriously.
Appetite is one of those things which can fluctuate on a fairly regular basis.
Dogs eat less when they’re in pain, stressed or anxious, when it’s hot, when they’re not getting much exercise and so on. Unfortunately, with arthritic joints, pain is a common symptom which an older dog can experience.
Puppies eat more than adult dogs per pound of body weight. Whereas senior dogs tend to eat less than younger adults due to a slower metabolism and activity level.
Eating less, or more, from time to time doesn’t necessarily mean there’s a problem.
WATCH: 3 Important Tips To Care For an Old Dog [VET VIDEO]
But if your senior dog isn’t eating on a regular basis, he’s lost his interest in food, or he’s losing weight, then you need to figure out what’s going on.
Here are some of the possible reasons for an older dog not eating:
Yes, sometimes just being a senior citizen is enough to take the edge off your dog’s appetite.
He probably doesn’t get nearly as much exercise as he used to because his body isn’t up to running, jumping, leaping, chasing…. a leisurely stroll down the street and back may seem like a marathon to him.
Plus, he’s sleeping more than he used to, and how many calories can a body burn when it’s inactive? Generally, not a lot.
If he’s not using up all those calories then he’s not going to be as hungry as he would if he was up-and-at-em all day.
Also, as dogs age (humans too!), their metabolism naturally slows down.
This means that it’s more difficult for him to use his food efficiently, or quickly.
When your older dog isn’t eating well, you may not think to look inside his mouth right off the bat.
But dental problems – such as broken teeth, gingivitis, cavities and/or infections – can make eating very painful. Not only in the mouth can cause a problem; arthritis of the jaw joint can also make chewing a sore process.
Generally, this is a pretty straightforward fix, requiring just a trip to the veterinarian for extraction or antibiotics. But the result can be nothing short of amazing – for Fido.
Many owners worry about how their senior dog might react under anesthetic for a dental procedure. But the good news is that medicine has advanced so much over the past decade, that the anesthetic drugs used are generally very safe. If you want to take an extra precaution, ask your vet to perform a pre-anesthetic blood test to check your golden oldie’s internal health beforehand.
Until your senior dog’s teeth are treated by your vet, you could try softening his food so it is less painful to chew, by soaking it or switching to canned food.
Physical Health Conditions
There are a lot of different senior dog health issues that can cause your older dog to eat less.
Some of them are minor, whereas others can be serious, and may even become chronic.
The less serious ailments (although, they are still ailments you should take your dog to the vet for) include a digestive system that’s just not as efficient as it used to be, food sensitivities, constipation, a poor sense of taste/smell which makes his food less appealing, depression, cognitive dysfunction, dental problems (see above) or anything which is causing him to feel nauseous.
If you’ve got an older dog who’s not eating, some more concerning possibilities include:
- Addison’s Disease
- Kidney Disease
- Heart Problems
- Liver Disease
There are often other symptoms as well as the appetite problem when your dog has a more serious illness.
These might include:
- Weight loss/gain
- Excessive thirst and urination
- Panting, pacing, whining
- Diarrhea or constipation
Overall, if Fido isn’t eating the way he used to and is showing ANY other signs of not feeling well, your best bet is to get him a full veterinary exam. While many of these ailments are not a cause to make a call to your vet in the middle of the night, it’s important not to take too long of a ‘wait and see’ approach with older dogs before going to the vet.
What To Do When Your Older Dog Won’t Eat
There are some situations where you need to get your senior dog a vet appointment as a priority, these include when:
- He stops eating completely
- He vomits, dry heaves and/or has diarrhea
- He’s severely constipated or his belly is distended
- He’s losing weight (even if he’s eating normally)
- He seems stressed or is panting/pacing/whining/drooling
- He’s lethargic, depressed or seems confused
- He just doesn’t seem ‘right’ to you or is acting differently
If your older dog isn’t showing any of these symptoms and he’s acting normally but just seems to be less interested in his food than he used to be, there are some things you can do to encourage him to eat more.
Read more about senior dog nutrition:
- 9 Tips to Get Your Old Dog To Eat More
- Old Dog Losing Weight: Top 8 Reasons & What to Do
- How To Keep Weight on an Older Dog
- The Best Supplements For Older Dogs
- About Senior Dog Supplements
- Best Dog Food For Senior Dogs
- Senior Dog Nutrition – An Owner’s Guide
Disclaimer: The information presented on this website is not a substitute for veterinary advice, diagnosis or treatment. We recommend taking your pet to the veterinarian for a full medical exam. Do not give supplements or medication without first consulting with your veterinarian first.