St Mary's Thistle (Silybum marianum), also known as Milk Thistle, is one of the most widely researched herbs used to support liver health in both people and animals.

The active compounds found in the seeds, collectively known as silymarin, have been studied for their antioxidant and liver-supportive properties. Research suggests that silymarin may help protect liver cells from oxidative stress and support the liver's natural ability to process toxins and metabolic waste. It has also been shown to help maintain healthy cell membranes and support normal liver regeneration processes.

Milk Thistle is commonly used by veterinarians and animal health practitioners as a nutritional support herb for dogs and cats when additional liver support is desired. Scientific reviews of veterinary research have identified antioxidant, anti-inflammatory and hepatoprotective (liver-supporting) actions that may help maintain normal liver function and overall wellbeing.

A review of companion animal research found that silymarin is among the most commonly used nutritional ingredients to support liver function in dogs and cats, with evidence suggesting benefits for maintaining healthy liver enzyme levels and supporting normal liver health.

At Natural Pet Supplements, we include St Mary's Thistle as part of our carefully formulated Liver Support blend to help support normal liver function, antioxidant defence, and everyday wellbeing in dogs and cats.