Thistle oil
oil · base score 0.7 · also listed as thistle oil, milk thistle oil
What is it?
Thistle oil is an oil or fat ingredient. Graded good: a real, recognisable ingredient that adds nutritional value, so it lifts a product’s score.
At a glance
- Category
- oil
- Grade
- good
- Base score
- 0.7 (from −1 to 1; higher is better)
- Found in
- 4 products
- Also listed as
- thistle oil, milk thistle oil
Common questions about thistle oil
Is Thistle oil good for dogs?
Yes, we grade it as a good ingredient: recognisable and nutritionally useful, so it lifts a product’s score. Bear in mind that no single ingredient decides quality; the whole recipe and its balance matter more.
How many UK dog foods contain thistle oil?
4 UK products list thistle oil as an ingredient in our database. The full list is shown below, sorted by rating.
What else is thistle oil called on labels?
Manufacturers list it under several names: thistle oil, milk thistle oil. We match all of these to the same glossary entry when we read a label.
How does Open Dog Food grade thistle oil?
We grade it good, our highest grade, reserved for recognisable ingredients that add real nutritional value. Every ingredient is converted to its dry-matter share and scored from our glossary before a recipe gets its 1-100 rating; the full method is on our methodology page.
What is thistle oil in dog food?
Thistle oil on pet food labels usually refers to oil pressed from safflower (Carthamus tinctorius) seeds, a thistle-like plant also called dyer's thistle. It is a fat source that supplies essential fatty acids, particularly linoleic acid. It may appear on labels as thistle oil or safflower oil.
Is thistle oil safe for dogs?
It is generally considered safe for dogs when used as a food ingredient. As with any fat source, some dogs may be sensitive to it, so speak to your vet if your dog has a history of digestive upset or pancreatitis.



