This powder is food grade as fits into the chemical codex for food grade. The particle sizes are broad with an average of 60 to 70 microns 2. Miracle formula is MGO3 being Magnesium Trisilicate having Magnesium content of over 110,000 ppm Magnesium reaction as in antacid tablets we take is a neutraliser of acids and FFA’s. what it does not neutralise it then proceeds to absorb.. Miracle is thus ½ way between Food grade and pharmaceutical. Pharmaceutical is 130,000 ppm or high is tablet form. Our plant makes Pharmaceutical grade powder, Magnesol does not. If you put magnesol in a tablet the tablet falls apart. Tablets need 20 microns to compress into a tablet. Our powder is thus denser and has a particle range of 40 to 100 microns with an average of say 50 to 65 microns which is approximately 75%. The other 25% is split between finer and lager particles. Magnesol has more air space we note in the top of the box. We pack miracle as a denser box to get more to the container and less crush in the cartons.