I wouldn't use Biscrok or Bonios.Find a high quality all natural biscuit instead with no added sugars,or make your own,but don't use something with questionable ingredients
For example Biscrok include several unspecified ingredients("Meat and Animal Derivatives" meaning not just meat but also biproducts which are unspecified so should automatically be considered unsafe,as not all biproducts are safe along with "vegetable derivatives" which could mean anything safe or not along with "seeds","herbs","cereals","oils and fats" which are all unspecified therefore unsafe as well along with unspecified "antioxidants and preservatives" which could and most likely are cancer causing BHA/BHT/ethoxyquin which shouldn't even be fed on rare occasions).