Milk thistle is primarily used for dogs with Cushing’s disease to protect and regenerate the liver, which is often damaged and overworked due to high cortisol levels. It helps lower elevated liver enzymes (ALP) and provides antioxidant support to help manage the stress on the liver and kidneys.

Is milk thistle good for dogs with Cushing's?

When a dog has Cushings, the liver enzymes are elevated and the liver becomes overworked. Dog supplements that help support the liver can be beneficial treatment options for Cushings. Two of these supplements are SAMe and milk thistle.

Does milk thistle lower cortisol?

When the benefits of milk thistle were evaluated recently in exercising horses, the stress hormone cortisol was lower in those supplemented compared to the control group, suggesting that supplemented horses were better able to manage the rigors of athletic training.

What supplements are good for dogs with Cushing's?

For Cushing's disease in dogs, popular supplements focus on reducing cortisol levels using lignans (from spruce or flax) and melatonin, which block ACTH and hormone production, often combined with phosphatidylserine to lower cortisol. Other helpful supplements include milk thistle for liver support, antioxidants (Vitamin E, C, Selenium) to protect cells, probiotics, and herbal blends like ashwagandha, but always consult a vet before starting any supplement to ensure it complements conventional treatment. 

How does milk thistle help dogs?

Milk thistle protects dogs' liver cells from damage and may protect against side effects from chemotherapy. In general, you should give a dog 20-50mg/kg of milk thistle for liver protection once a day. Follow dosing instructions for products containing milk thistle. Milk thistle is safe for dogs.

8 Benefits of Milk Thistle for the Liver

Is milk thistle good for dog kidneys?

What Is It? Milk Thistle for dogs is a gentle supplement that supports liver and kidney health, helps with detoxification, and provides antioxidant protection for long-term wellness.

What are the negative side effects of milk thistle?

Milk thistle is generally well-tolerated but can cause mild digestive issues like bloating, gas, nausea, and diarrhea, along with headaches and skin reactions; however, it poses risks for people allergic to ragweed (Asteraceae family), those with hormone-sensitive cancers (breast, uterine, ovarian), and can interact with medications like blood thinners, potentially lowering blood sugar, and affecting estrogen levels, so caution and medical consultation are essential, especially for pregnancy, breastfeeding, or underlying health conditions.

How to slow down Cushing's disease in dogs?

This version of Cushing's is generally treated with medications, such as Vetoryl® (trilostane) or Lysodren® (miotane), that must be taken for their lifetime. Trilostane inhibits the production of cortisol by the adrenal glands while miotane destroys the cells in the adrenal glands that produce cortisol.

What not to give a dog with Cushing's disease?

What foods should be avoided for dogs with Cushing's disease? Avoid high-carb foods, processed and fatty foods, and salty treats such as jerky, chips, or deli meats. These can worsen symptoms and strain your dog's kidneys and heart.

What supplements lower cortisol levels in dogs?

1. Melatonin and Lignans. Melatonin and lignans are among the most effective natural remedies for Cushing's disease in dogs. Melatonin helps regulate hormone levels, inhibit excess cortisol production, and promote restful sleep, while lignans (found in flaxseed) help balance hormone levels and reduce cortisol output.

What brings cortisol levels down quickly?

To lower cortisol fast, focus on immediate stress reduction with deep breathing, yoga, or spending time in nature, combined with lifestyle shifts like prioritizing 7-9 hours of sleep, eating a balanced diet (whole foods, less sugar/caffeine), getting regular moderate exercise, and nurturing healthy relationships to calm your nervous system.

What hormone does milk thistle increase?

Because milk thistle is a plant estrogen (phytoestrogen), it can help regulate hormone levels, including estrogen and testosterone, says Anderson-Haynes. A review of research studies also suggests that it can raise the levels of testosterone.

How long does it take for milk thistle to work?

It depends. Sometimes it can take up to 3 months for a milk thistle supplement to show its benefit. Our best advice is to stick with it, as it'll benefit you in the long run for sure! As for milk thistle dosage for fatty liver, a 90-day study found that 250-376mg of milk thistle per day helped reduce liver fat.

How to help a dog with cushings lose weight?

Consider these dietary adjustments: Low-fat, high-protein diets: A high-protein diet helps maintain muscle mass while reducing fat intake, essential for weight management. Look for high-quality dog foods designed for senior dogs, which often have lower fat and higher protein content.

Can I give my dog milk thistle every day?

Although Milk Thistle is very safe, dog guardians should speak to a veterinarian before giving a supplement to their dogs. Milk thistle is recommended for dogs with a health concerns that will benefit from Milk thistle rather than as a regular daily supplement for healthy dogs.

What is an alternative to Vetoryl for dogs?

Overview. This article compares Vetoryl (trilostane), the only FDA-approved medication for canine Cushing's disease, with alternatives including Lysodren, ketoconazole, selegiline, cabergoline, and supplements, discussing their effectiveness, safety profiles, costs, and monitoring requirements.

What triggers cushings in dogs?

Cushing's disease (hyperadrenocorticism) in dogs is caused by prolonged exposure to excess cortisol, usually from a benign pituitary tumor (most common), a tumor on an adrenal gland, or prolonged use of steroid medications (iatrogenic Cushing's). The pituitary tumor overstimulates the adrenals, while an adrenal tumor produces cortisol directly; both lead to the body making too much cortisol, causing symptoms like increased thirst, urination, skin issues, and a pot-bellied appearance.
 

What is the best diet for a dog with Cushing's?

It's Low in Fat With Moderate Fiber

Some dogs with Cushing's disease have excess levels of body fat. To help combat this, a food that's lower in fat (less than 12% on a dry matter basis, or DM) and moderate in crude fiber (8-17% DM) is reasonable.

Is walking good for a dog with Cushing's disease?

Even though Cushing's dogs experience muscle and bone loss, a gentle exercise routine is essential. Easy exercise can help build muscle strength. Start slow and build up to longer walks. Choose walk times with mild temperatures when possible.

Can cushings in dogs be reversed?

The only way to "cure" Cushing's disease is to remove the adrenal tumor if the disease is adrenal-dependent and the tumor hasn't spread, says Stohlman. However, because of the complexity and risks of the surgery, most cases are treated with medication.

What supplements are good for dogs with Cushing's disease?

For Cushing's disease in dogs, popular supplements focus on reducing cortisol levels using lignans (from spruce or flax) and melatonin, which block ACTH and hormone production, often combined with phosphatidylserine to lower cortisol. Other helpful supplements include milk thistle for liver support, antioxidants (Vitamin E, C, Selenium) to protect cells, probiotics, and herbal blends like ashwagandha, but always consult a vet before starting any supplement to ensure it complements conventional treatment. 

Is milk thistle hard on the kidneys?

No, milk thistle isn't generally considered bad for kidneys; in fact, research suggests its active compound, silymarin, might protect kidneys, especially in cases of diabetic kidney disease or damage from certain toxins, by reducing inflammation and oxidative stress, but more human studies are needed, and people with existing kidney issues should consult a doctor before use due to lack of FDA regulation.
 

Does milk thistle flush out the liver?

There is extensive evidence to show that milk thistle improves liver function and may even increase survival in some patients. The herbs anti-fibrotic properties help to prevent scarring in the liver tissues and reverse the harmful effects of alcohol consumption.

When should you not take milk thistle?

If you have diabetes, use milk thistle with caution, since the supplement might lower blood sugar. There is also concern that milk thistle might affect estrogen levels. If you have breast cancer, uterine cancer, ovarian cancer, endometriosis or uterine fibroids, consider avoiding milk thistle.

---