There are food grade and non-food grade choices with this product.

I worked in a pharmaceutical/chemical plant in the 90's and it was called 'body feed', it was added to certain chemicals to aid in filtration. There was the filter cloth and then this DE/body feed would form a secondary membrane that would filter and prevent the cloth from blinding.

I would bring a bag home and throw it in the flower bushes and around the dogs and dog pens. It worked pretty good for bugs and such on the flowers and it helped with fleas and what nots around the pens. I never imagined there would be a food grade version and people would actually use it directly on the dogs.

Back then it was like $7 for a 22.68kg (50lb) bag. Now I see the food grade version for way, way more than $7 for a very small bag.

EWO