manganese sulfate

What it is

The inorganic sulfate of manganese, an essential trace metal for cartilage synthesis, bone development, and antioxidant enzymes. Requirements are tiny; deficiency and excess are both rare in formulated foods.

Why it's in pet food

Completing the trace-mineral premix. Manganese has no marketing story, no controversy, and no fan club — which in this corpus counts as a compliment.

How Bowlmark scores it

Scores are deterministic math over the printed label — the rules below apply to every product identically, and nothing estimates or fills in a blank.

Neutral. Nothing to watch, nothing to celebrate: manganese in the list means the premix was built to specification. The joint-cartilage connection occasionally surfaces in supplement marketing; formulated food already covers the cofactor, and joint disease needs more than a trace metal.

Read the full methodology

Foods that list manganese sulfate

Ranked by score where scores exist. Placement here is never sold.

• Kettle Creek Farmhouse Chicken & Sweet Potato94
• Copperfield Cats Kitten Heritage Chicken & Oat Recipe93
• Meadow Farms Chicken & Oatmeal Puppy93
• Whisker & Pine Wild-Caught Salmon & Lentil Recipe93
• Copper Hollow Lamb & Brown Rice Sensitive Skin & Stomach92
• Blue Buffalo Life Protection Formula Adult Dry Dog Food - Chicken & Brown Rice91
• Diamond Naturals All Life Stages Dog Chicken & Rice Formula91
• Diamond Naturals Small Breed Adult Dog Lamb & Rice Formula91

Sources

• NRC Nutrient Requirements of Dogs and Cats (2006)
• AAFCO Dog & Cat Food Nutrient Profiles (2016)

Related ingredients

• iron proteinate
• magnesium oxide
• manganese proteinate
• monocalcium phosphate
• potassium iodide
• selenium yeast

Further reading

• The guaranteed analysis, decoded
• How to read a pet food label