Ash Content in Pet Food

Grade C-2.5 ptsRead the Fine Print

What It Is

"The inorganic mineral residue remaining after a food is incinerated."

Health Impact

High ash content in cat food is associated with urinary tract crystals and stones. Low-ash diets are often recommended for cats with urinary issues. Ash is not added — it's the natural mineral content of the ingredients. High ash usually means low-quality protein sources with lots of bone.

Why This Grade

A real but unresolved concern: often an ongoing FDA/AAFCO research question (like the grain-free/DCM investigation), a common allergen, or a vague-but-not-alarming label claim. -2.5 pts deducted.

Sources & Further Reading

Frequently Asked Questions

Is Ash Content safe for dogs and cats?

Rated C (-2.5 pts) by PetPro-tectors™. High ash content in cat food is associated with urinary tract crystals and stones. Low-ash diets are often recommended for cats with urinary issues. Ash is not added — it's the natural mineral content of the ingredients. High ash usually means low-quality protein sources with lots of bone.

What is Ash Content in pet food?

The inorganic mineral residue remaining after a food is incinerated.

Related Read the Fine Print Ingredients

Natural FlavorsHuman-Grade
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Sources: FDA, AAFCO Official Publication, National Toxicology Program,
WSAVA Global Nutrition Guidelines, Journal of Animal Science.

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