Chromium is significant in the human system especially for its activation of enzymes through the systhesis of fatty acids and cholesterol. It is stored most prevalently in trace portions in the spleen, kidneys, testes, and to some degree in the heart, lungs, and brain. It is found in many enzymes and in the RNA molecules. Knowledge of its minimum and maximum requirements in the human body is (once again) limited, though measurements of its deficiency underline its importance. Systems lacking in chromium are especially susceptible to retarded glucose tolerance and are therefore quite susceptible to sugar related diseases such as diabetes.
There is no indication of either iron or sulfur minerals in Aloe Vera, although the mucopolysaccharide derivatives methionine and cyctine are amino acid sulfates (Sulfates are salts or esters of sulfur). What it means for the moment is that there are possibly elements in the mucopolysaccharides of the leaf-gel that are able to trigger the mineral activity in the body. In this case, we have to remember to that the anthracene (anthraquinone) complex is known to exhibit monosulfonic acid; though this has never specifically been isolated in analysis.
The significance of minerals as healing agents in the human system is open to question. Yet there can be no question that when the body is damaged or diseased, or there is a damage or disease to tissue, the mineral elements are imperative as rebuilders and refortifiers of that tissue. They are often the elements most difficult to absorb and most easily released from the body. Given their participation in the healing process their replacement, therefore, is a matter of necessity.
ref: Silent Healer (pg. 53) by Bill Coats R.PH., with Robert Ahola