Hyperthyroidism
The most common cause of weight loss with increased appetite in senior cats. Excess thyroid hormone accelerates metabolism. Treatment with medication, diet, or radioactive iodine is highly effective.
Cat Symptom
My Cat Is Losing Weight — Expert Online Vet Help
Unexplained weight loss in cats — especially with a normal or increased appetite — signals serious disease. Get a same-day expert assessment and guidance on essential diagnostics.
Licensed Vets
$65 Flat Fee
Same-Day Rx
24/7 Access
Moderate urgency — consult a vet within 24–48 hours
When to worry about cat weight loss
Expert online help when your cat is losing weight
Licensed vet video assessment of your cat's body condition
Same-day appointments — most seen within 1–3 hours
Prescriptions delivered next business day when appropriate
$65 flat fee — no memberships or hidden charges
Guidance on bloodwork and diagnostic next steps
Clear management plan once underlying cause is identified
Weight loss in cats is never normal unless you are actively managing obesity. Unintentional weight loss commonly indicates hyperthyroidism, diabetes, chronic kidney disease, inflammatory bowel disease, or cancer — particularly in cats over 8 years old.
TelaVets connects you with a licensed veterinarian who can assess your cat's body condition, appetite, and behavior via secure video — often the same day. Early diagnosis significantly improves outcomes.
Signs to watch for when your cat is losing weight
- Visible rib and spine prominence
- Loss of muscle mass along the back and hindquarters
- Eating more but still losing weight
- Decreased appetite alongside weight loss
- Vomiting or diarrhea
- Increased thirst and urination
- Hyperactivity or restlessness
- Poor coat quality or excessive grooming
Common causes of losing weight in cats
- Hyperthyroidism
- Diabetes mellitus
- Chronic kidney disease
- Inflammatory bowel disease (IBD)
- Cancer (lymphoma, other)
- Dental disease causing eating difficulty
- Intestinal parasites
- Hepatic lipidosis
Why is my cat losing weight?
Feline weight loss always has an underlying cause. The combination of weight loss with appetite changes narrows the most likely diagnoses.
Diabetes & kidney disease
Diabetes causes weight loss despite a ravenous appetite. CKD causes gradual wasting as cats become nauseous and eat less. Both are manageable with early diagnosis.
Intestinal disease & cancer
IBD and intestinal lymphoma cause malabsorption and weight loss, often with vomiting and diarrhea. Early diagnosis through bloodwork and imaging improves treatment options.
How our vets assess this online
Our vets assess weight loss through a detailed video consultation — evaluating body condition, appetite, and associated symptoms.
- Visual assessment of body condition, muscle wasting, and coat on video
- Review of appetite changes — increased vs. decreased eating
- Discussion of vomiting, diarrhea, thirst, and activity level
- Evaluation of age, prior weight, and timeline of loss
- Recommendations for senior bloodwork panel, urinalysis, and abdominal imaging
Treatments we may recommend
Based on your cat's assessment, our licensed vets may recommend:
Senior bloodwork coordination and result interpretation
Hyperthyroidism medication management (methimazole)
Insulin therapy guidance for diabetes
Prescription renal or gastrointestinal diet
Appetite stimulants and anti-nausea medication
Deworming if parasites are suspected
Referral for ultrasound or further diagnostics when cancer is suspected
All medications are prescribed only when clinically appropriate by a licensed veterinarian and dispensed through our FDA-compliant pharmacy.
Monitoring your cat's weight
Weigh your cat monthly and track trends over time
Schedule annual senior wellness bloodwork starting at age 7
Address dental disease promptly to maintain comfortable eating
Feed a balanced, age-appropriate diet and monitor portion sizes
Seek vet evaluation at the first sign of unexplained weight loss
Why pet parents choose TelaVets
Licensed DVMs Only
Every consultation is with a licensed Doctor of Veterinary Medicine — not a chatbot or technician.
$65 Flat Fee
One transparent price covers your full video consultation and treatment plan. No facility fees or surprise charges.
Same-Day Appointments
Most pet parents are connected with a vet within 1–3 hours of booking, 7 days a week.
Next-Day Prescriptions
When medication is appropriate, prescriptions are issued same-day and delivered to your door next business day.
Stress-Free Home Visits
Your pet is assessed in their calm home environment, which often makes symptoms easier to evaluate on video.
Secure & Private
Encrypted video calls and HIPAA-compliant records keep your pet's health information protected.
How TelaVets works
Book your consultation
Pick a same-day or upcoming slot — appointments available 7 days a week.
Connect with a licensed vet
Your vet assesses your pet via secure video, asks detailed questions, and reviews their history.
Get your treatment plan
Receive a diagnosis, personalised care plan, and same-day prescriptions delivered next-day.
What Our Pet Parents Say
Join thousands of happy pet parents who trust TelaVets for their furry family members care
"Fantastic service! My dog gets extremely anxious at the vet, so having a virtual appointment from home was a game-changer. The vet was kind and helpful, and getting his medication delivered the next day made the whole process stress-free and more affordable than going to the clinic."
DL
David Long
Verified Pet Parent
"The vet I spoke with Dr. Ricksaw was very knowledgeable and nice. He took the time to go through all of my options and ideas with me. Reassured me that all we were doing for my dog's anxiety was good and gave me a couple of new ideas as well."
CH
Courtney Hughes
Verified Pet Parent
"I would definitely use them again. I'm cat sitting for 2 weeks and needed to see a vet. I was so worried about the kitten. I used Televets the cat got his prescription and all is good. Excellent service!"
M
Maria
Verified Pet Parent
"Dr Corey was amazing, helpful, compassionate and well versed. I would highly recommend using this. It is so much easier than trying to get a 3 legged cat into a carrier, take him to a doctor's office and stress him out, love it!!!"
JG
Jackie Gardner
Verified Pet Parent
"I had a TelaVets Zoom appointment and couldn't be more impressed. They spent a lot of time with me, walking through every option to help my cat recover from her skin issues. I've also reached out about getting her medication through Chewy.com, and they've been extremely helpful every step of the way."
LD
Lara Durand
Verified Pet Parent
"Dr. Moppin is a dedicated professional who truly cares about his furry patients and their humans, too! It's such a relief that Dr. Cole took the time to listen and address my concerns thoughtfully. Thank you for taking care of our cats 🐈"
WW
Wanida Walker
Verified Pet Parent
"This service was amazing! My dog ran out of his medication before we were able to get in with a new vet and they were able to help get him a short term supply quickly. I would definitely use them again!"
AT
Amanda Tobias
Verified Pet Parent
"Knowledgeable, professional caring provider! Needed urgent Vet care on a weekend and TeleVet kept me from having to miss a day of work, as well as half the price of local weekend options. Thank you!"
JH
Jana Humble
Verified Pet Parent
"Dr. McGinnis was very knowledgeable and listened to my cat's issues. She addressed the problem and may have come up with an answer after 5 years of trying with local vet practices."
MK
Marilyn Kerr
Verified Pet Parent
"Fantastic service! My dog gets extremely anxious at the vet, so having a virtual appointment from home was a game-changer. The vet was kind and helpful, and getting his medication delivered the next day made the whole process stress-free and more affordable than going to the clinic."
DL
David Long
Verified Pet Parent
"The vet I spoke with Dr. Ricksaw was very knowledgeable and nice. He took the time to go through all of my options and ideas with me. Reassured me that all we were doing for my dog's anxiety was good and gave me a couple of new ideas as well."
CH
Courtney Hughes
Verified Pet Parent
"I would definitely use them again. I'm cat sitting for 2 weeks and needed to see a vet. I was so worried about the kitten. I used Televets the cat got his prescription and all is good. Excellent service!"
M
Maria
Verified Pet Parent
"Dr Corey was amazing, helpful, compassionate and well versed. I would highly recommend using this. It is so much easier than trying to get a 3 legged cat into a carrier, take him to a doctor's office and stress him out, love it!!!"
JG
Jackie Gardner
Verified Pet Parent
"I had a TelaVets Zoom appointment and couldn't be more impressed. They spent a lot of time with me, walking through every option to help my cat recover from her skin issues. I've also reached out about getting her medication through Chewy.com, and they've been extremely helpful every step of the way."
LD
Lara Durand
Verified Pet Parent
"Dr. Moppin is a dedicated professional who truly cares about his furry patients and their humans, too! It's such a relief that Dr. Cole took the time to listen and address my concerns thoughtfully. Thank you for taking care of our cats 🐈"
WW
Wanida Walker
Verified Pet Parent
"This service was amazing! My dog ran out of his medication before we were able to get in with a new vet and they were able to help get him a short term supply quickly. I would definitely use them again!"
AT
Amanda Tobias
Verified Pet Parent
"Knowledgeable, professional caring provider! Needed urgent Vet care on a weekend and TeleVet kept me from having to miss a day of work, as well as half the price of local weekend options. Thank you!"
JH
Jana Humble
Verified Pet Parent
"Dr. McGinnis was very knowledgeable and listened to my cat's issues. She addressed the problem and may have come up with an answer after 5 years of trying with local vet practices."
MK
Marilyn Kerr
Verified Pet Parent
Related resources
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Frequently asked questions about losing weight in cats
losing weight in cats can have many causes. Our licensed vets use your pet's history, symptom pattern, and a visual assessment via video to narrow down the most likely cause and recommend appropriate treatment.
If your cat's losing weight has lasted more than 24–48 hours, is severe, or is accompanied by other concerning symptoms (lethargy, loss of appetite, vomiting), book a consultation immediately.
Yes. Our vets can assess your cat's symptoms via secure video, ask detailed diagnostic questions, and prescribe appropriate treatment — all without a clinic visit.
If medication is clinically appropriate, our licensed vets can issue prescriptions same-day with next-day delivery to your home.
Mild losing weight often isn't an emergency, but if your cat shows severe distress, difficulty breathing, collapse, or other alarming signs, seek emergency in-person care immediately. When in doubt, book a consultation — our vets will help you assess the urgency.
Get expert help for your cat's losing weight today
Same-day appointments — $65 flat fee — licensed vets