I recently purchased food grade DE from Wolfcreek. I started with 2 tablespoons per day and had some terrific die off. I also got dry skin on my haunches and inner thighs. I have cut back to 1 tea per day.
What ever you do take it slow. Try 1 tea per day in 6-8 oz of water on an empty stomach, preferably in the am for one week and build from there. Drink lots of water because it can constipate you.