It is food grade DE I got from amazon.com and yes on both ParaGone and Parastroy and raw garlic in my food I was and am still expelling nose and eye worms and my headaches have ceased. My teeth have signs of rot as in two or three black spots and decay. I will be paying hefty dentist bills after I am done clansing. The paragone literally wiped out all gingivitis and my gums have never looked healthier but you wouldn't know it by state of my teeth.