Louis Kevran, in his fascinating book, Biological Transmutations, demonstrates that living organisms have a limited ability to transmutate one element into another alchemically. T hat is, they can convert organic silica into calcium, or magnesium into calcium, or sodium into potassium, or manganese into iron, etc
Biological transmutations most often occur in the green leaves and roots of plants. In the human body, such transmutations occur in the liver and intestinal flora (probiotics). To maintain vibrant health it is very important to keep the liver functioning at an optimal level. If the liver function drops below a specific level, biological transmutation stops, and one's health is compromised.