It may depend on what agrees with the dog. I prefer to avoid potato laden dog foods.
I would probably choose the lentils.
Per the Zignature website http://zignature.com/?page_id=12&lang=en
Why is it important that Zignature® contains no potatoes?
Potatoes have been identified as a high-glycemic carbohydrate for dog food. Zignature® only uses low glycemic carbohydrates such as whole Chickpeas, and garden Peas which also provide valuable soluble and insoluble fiber. For more details, visit the Glycemic Research institute at gripetfoods.com.
