Hyperthyroid
Natural Remedies

Natural Remedies for Hyperthyroid in Pets

| Modified on Aug 17, 2025
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Hyperthyroidism is a common endocrine disorder in pets, especially in older cats and, occasionally, dogs. It occurs when the thyroid gland produces excessive thyroid hormones, causing symptoms such as increased appetite, weight loss, hyperactivity, and rapid heart rate. While veterinary treatments often involve medication or surgery, many pet owners seek natural remedies and dietary changes to safely manage hyperthyroid symptoms in their pets.

Understanding Hyperthyroidism in Pets

Hyperthyroidism occurs due to an overactive thyroid gland. In pets, particularly cats, this typically involves benign thyroid growths. Common symptoms include:

  • Weight loss despite increased appetite
  • Excessive thirst and frequent urination
  • Increased activity or agitation
  • Poor coat condition
  • Rapid heartbeat

Consulting your veterinarian is essential for diagnosis, but natural treatments can significantly complement conventional therapies.

Top Natural Remedies for Hyperthyroidism in Cats and Dogs

1. Dietary Changes: Low-Iodine Diet

One effective approach is a low-iodine diet. Because iodine is necessary for thyroid hormone production, reducing dietary iodine can lower excessive hormone levels in pets. Specialized low-iodine foods designed specifically for hyperthyroid pets can help manage symptoms naturally.

  • Recommended: Low-iodine prescription pet foods
  • Foods to Avoid: Fish, kelp, and seafood-based ingredients (high iodine content)

2. Bugleweed (Lycopus virginicus)

Bugleweed is a traditional herbal remedy known to inhibit excessive thyroid hormone production. It's considered safe and effective for reducing symptoms of hyperthyroidism in pets when used carefully.

  • Dosage: Administer as a tincture—consult a holistic vet for accurate dosing based on your pet's weight.
  • Caution: Not suitable for pets with hypothyroidism or pregnant animals.

3. Lemon Balm (Melissa officinalis)

Lemon balm has mild sedative and calming properties, beneficial for pets experiencing hyperactivity and anxiety related to hyperthyroidism. It can help reduce agitation and restlessness.

  • Usage: Add small amounts of lemon balm tea to your pet's water or food daily.
  • Dosage: ¼ teaspoon of dried herb per 10 pounds of pet's body weight.

4. Omega-3 Fatty Acids

Omega-3 fatty acids, found in fish oil and flaxseed oil, offer anti-inflammatory benefits that can help support heart health and reduce inflammation associated with hyperthyroidism.

  • Recommended Dosage: 50 mg/kg of fish oil daily; consult your veterinarian for precise dosing.

5. Probiotics and Digestive Enzymes

Probiotics and digestive enzymes help stabilize digestive function and nutrient absorption, often compromised in pets with hyperthyroidism.

  • Usage: Choose pet-specific probiotic supplements or add fermented foods like plain yogurt or kefir to your pet’s diet.
  • Dosage: Follow supplement label instructions or veterinarian recommendations.

6. CBD Oil

CBD oil can offer calming effects, reduce anxiety, and improve overall comfort in pets suffering from hyperthyroidism-related stress and restlessness.

  • Dosage: Start with a low dose (0.1-0.2 mg/kg daily), gradually adjusting as needed.
  • Caution: Always use high-quality, pet-formulated CBD oil and consult your veterinarian before use.

Additional Lifestyle Recommendations

In addition to the above natural treatments, consider these supportive measures:

  • Reduce Stress: Maintain a calm environment for your pet. Stress can exacerbate hyperthyroid symptoms.
  • Regular Monitoring: Periodically check thyroid levels to monitor the effectiveness of your pet's treatment plan.
  • Routine Exercise: Gentle exercise can help maintain muscle mass and improve overall well-being.

Precautions and Considerations

While natural remedies can significantly improve your pet’s quality of life, they should complement—not replace—regular veterinary care. Always discuss dietary and herbal supplements with a veterinarian familiar with holistic treatments to ensure safe and appropriate use.

Conclusion

Using natural remedies for hyperthyroidism in pets can help manage symptoms safely and effectively, providing relief and improving overall health. With dietary changes, beneficial supplements, and herbal support, your cat or dog can experience a better quality of life.

Keep reading below for feedback from Earth Clinic readers about which natural remedies have helped manage hyperthyroid symptoms in their pets. Please share your experiences as well!


The comments below reflect the personal experiences and opinions of readers and do not represent medical advice or the views of this website. The information shared has not been evaluated by the FDA and is not intended to diagnose, treat, or prevent any disease or health condition. Always consult a qualified healthcare professional for medical concerns.

Hyperthyroid Remedies for Pets

Posted by Nadirah (USA) on 03/29/2025

I don't see anything on Hyperthyroid in cats just hypothyroid, any suggestions would be welcome.

Replied by Steph
(Kansas)
08/16/2025

Same here, Nadirah. I'm cutting all fish from my cat's diet. I found some black mold near one if his sleeping places. That's all I can think of. I did see somewhere recommendation to give the pet ACV, so I am putting a small amount in his drinking water. I would love to hear from anyone else who has any ideas.

Steph
(KS)
08/16/2025

Anyone else who comes here looking for more information on treating cats with HyperT, I recommend you read the page on HyperT in humans. There are cat stories there. After reading it I ordered NHV Resthyro. I ordered it from the company itself because they seem to provide great customer support and sometimes supplements sold on Amazon are counterfeit and my cat's health is too important to me to take a chance on that. I've already started my cat on the med from the vet, but I plan to discuss it with the vet and have him checked regularly for a while to see if he can be weaned off the med or taken to an even lower dose.