I have been using this product for several months now – a spoonful every morning. I have fibromyalgia in early stages, the fingers have been stiff and I’ve had severe pain in the joints. After I have been taking the silica, I have not felt any pain or stiffness. I’ve also had an iron and B12 deficiency and therefore been extremely tired at times. Now I feel much more energy and I have reduced the iron supplement considerably. Stomach pain is gone and a back pain that I have had for over a year is completely gone.