Our Diatomaceous Earth is 100% food grade
 Perma-Guard Diatomaceous Earth is 100% food grade made up of 85% or more natural silica. DE benefits include and not limited to are as follows • Improves joint, bone and ligament health • Lowers cholesterol • Improved digestion and more regular bowel movements • Better liver and colon functioning • Improved detoxification and removal of heavy metals • Is rich in nutrients and minerals including: silica, magnesium, silicon, calcium, sodium, iron, titanium, boron, manganese, copper and also zirconium. Please review the further research section for a fuller understanding of the science behind Diatomaceous Earth and how it works in your body.