I learned about these through Jim Self’s Mastering Alchemy work, ordered them a few weeks ago and have really enjoyed the effects so far.  Based on the testimonials, it appears effects for each of us are quite different but that there may be a widespread deficiency in these trace minerals.  I feel more balanced, my appetitie has lessened and I feel less food cravings and more emotionally centered/stable.  Good stuff!  www.masteringalchemy.com/products-we-love