Diatomaceous Earth is a naturally mined substance from the earth. It will rid your pets of most parasites with no side effects. This does not work on heartworms so you'll have to take a look at my page on naturally preventing heartworms. It is important to note that not all Diatomaceous Earth is food grade as some is for using around the house and garden to prevent infestations of pests.
WARNING: USE CAREFULLY AND DO NOT ALLOW PETS TO INHALE AS THIS CAN IRRITATE LUNGS.
MIX INTO WET FOOD.