"Should a deficiency occur in one or more of these workers, of whom there are twelve, some abnormal condition arises. 

"These abnormal conditions are known by the general term disease, and according as they manifest themselves in different parts of the body, they have been designated by various names. But these names totally fail to express the real trouble. 

"Every disease which afflicts the human race is due to a lack of one or more of these inorganic workers. Every pain or unpleasant sensation indicates a lack of some inorganic constituent of the body. Health and strength can be maintained only so long as the system is properly supplied with these call-salts." 

--The Biochemic Handbook
by JB Chapman MD and Edward L Parry MD

There are 12 essential cellsalts, also known as tissue salts. These are :

• calcium (phosphate, sulphate and fluoride), 

• potassium (phosphate, sulphate and chloride), 

• sodium (phosphate, sulphate and chloride), 

• magnesium phosphate, 

• Iron / ferrum phosphate, and 

• silica / silicon dioxide.