Cereals and starches

Potato

B

Good

Description

Common gluten-free starch.

Benefits

Gluten-free, good digestibility

Risks

High GI, few nutrients

Why this ingredient is used

Potato is a common grain-free starch in pet food. It is gluten-free, cheap, and extrudes well. The glycemic index is high (similar to white rice), which means it spikes blood sugar and is not ideal for diabetic or overweight pets. Potato appears in many grain-free brands as the primary carbohydrate because it is cheaper than sweet potato and easier to source than lentils. PetFoodRate scores potato as B-grade: safe and functional but nutritionally basic. Sweet potato scores higher due to lower GI and higher vitamin content.

Species adaptability

Good for

  • Dogs

Avoid for

  • Cats

Products containing this ingredient