The liver plays a vital role in the health of horses, as it is responsible for detoxification, regulating metabolism, and processing nutrients. Liver damage can often go unnoticed for a long time because symptoms usually appear late, when the problem is already advanced.
The liver is a vital organ in horses that performs several essential functions, such as detoxification, metabolic regulation, and immune system support. It breaks down and eliminates toxins entering the body, processes nutrients, and stores various vitamins and minerals. Since the liver has no pain receptors, its dysfunctions are often detected only at a late stage, when significant damage has already occurred.
Causes of Liver Damage in Horses
Several factors can lead to liver damage in horses:
- Toxins and Molds: Mycotoxins found in spoiled, moldy feed can severely damage the liver. Some toxic plants in pastures, such as ragwort (Senecio jacobaea), also contain hepatotoxic compounds.
- Medications and Chemicals: Long-term or high-dose use of certain drugs, including some antibiotics and anti-inflammatory medications, can burden the liver.
- Excessive Protein and Fat Intake: A sudden increase in protein intake, such as when switching to fresh spring grass, may overload the liver.
- Infections and Diseases: Certain viruses, bacteria, and parasites (such as Fasciola hepatica, the liver fluke) can also damage the liver.
Symptoms of Liver Dysfunction in Horses
Signs of liver damage can vary depending on its severity. The most common symptoms include:
- Decreased performance, fatigue
- Jaundice (yellow discoloration of the skin and mucous membranes)
- Recurring diarrhea or digestive problems
- Loss of appetite, weight loss
- Swollen abdomen (edema)
- Neurological symptoms such as irritability or coordination problems
- Dull, poor-quality coat and skin issues
The Role of Milk Thistle in Liver Protection for Horses
Milk thistle (Silybum marianum) is the most commonly used natural liver protector, applied in both humans and animals. Its active compound, silymarin, has powerful antioxidant and anti-inflammatory properties. Research has shown that silymarin:
- Aids in the regeneration of liver cells, promoting the formation of new cells
- Reduces inflammation and neutralizes free radicals that damage liver tissue
- Increases the liver’s detoxification capacity, helping toxins to be eliminated more efficiently
- Supports bile production, which is crucial for digestion and fat metabolism
According to a 2020 veterinary study, horses that consumed milk thistle extract showed a significant decrease in liver enzyme levels within six weeks—indicating improved liver function—and had significantly lower cortisol (stress hormone) levels compared to horses that did not receive it. Another study found that silymarin reduces oxidative stress in liver cells caused by mycotoxins.
Why Give Horses Milk Thistle in the Spring?
In spring, horses’ diets change significantly. Fresh grass and feed concentrates used for competition contain higher protein levels, and this shift can stress the liver. Additionally, medications given during winter, such as dewormers, and accumulated toxins place further strain on this vital organ. Feeding milk thistle powder during this period is especially recommended, as it supports detoxification and liver regeneration.
Milk thistle, in powder or meal form, can be easily mixed into the horse's daily feed. Regular liver support contributes to better performance, improved digestion, shinier coat, and overall well-being.
A Natural and Effective Liver Support—Especially in Spring
Milk thistle offers a natural and effective way to support the liver in horses, particularly during the spring when the body requires enhanced detoxification. With proper care and liver support, we can ensure our horses remain healthy and vital in the long term.
Meglio Horse Liver Support can provide stable and reliable assistance to this essential organ. While it works internally, it can also enhance a horse’s appearance—improving nutrient absorption and bringing out a radiant shine in the coat.
Give it a try!
