Magnesium sulfate
supplement · base score 0.8 · also listed as magnesium sulfate, epsom salt
What is it?
Magnesium sulfate is a supplement added for a specific benefit. Graded good: a real, recognisable ingredient that adds nutritional value, so it lifts a product’s score.
At a glance
- Category
- supplement
- Grade
- good
- Base score
- 0.8 (from −1 to 1; higher is better)
- Found in
- 14 products
- Also listed as
- magnesium sulfate, epsom salt
Common questions about magnesium sulfate
Is Magnesium sulfate 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 magnesium sulfate?
14 UK products list magnesium sulfate as an ingredient in our database. The full list is shown below, sorted by rating.
What else is magnesium sulfate called on labels?
Manufacturers list it under several names: magnesium sulfate, epsom salt. We match all of these to the same glossary entry when we read a label.
How does Open Dog Food grade magnesium sulfate?
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.





