Moist Treats
Pros: Cats love them.
Cons: They are hard to give to cats; you cannot leave them in a toy.
Instinct Freeze Dried Raw
Pros: These have the most uniform round shape which is good for toys that toss treats to fetch or toys designed to drop treats as they move.
Cons: They have more ingredients than other freeze-dried treats.
Vital Essential Mini Nibs
Pros: Roundish shape that will work for many toys but with better quality (and fewer) ingredients.
Cons: Not as uniform in shape as Instinct treats, so they have a higher chance of getting stuck in toys.
Other Awesome Treats
Pros: These treats are great for hiding in puzzles that cats must open.
Cons: The shape of these treats means they won’t easily expel from the holes of toys.
Food As Treats
Pros: Balanced ingredients. Ziwi Peak and CatIt Gold Fern are air-dried, which is better than freeze-dried.
Cons: Larger size.