From: peter@tsto.co.uk   
      
   On 14/08/15 05:00, Grokman Grokman wrote:   
   >   
   > MgO is almost always referred to as the lousiest form (least absorbable) of   
   dietary magnesium.   
   > Yet, the product is simply MgCl2 + H20, with a substantially neg delta H.   
   >   
   > So how could it be worse (less absorbable) than MgCl2?   
      
   MgO comes in several forms.   
      
   Dead burnt, made at high temperature, is unreactive with stomach acids,   
   and is used as a refractory.   
      
   Light burnt, made at low temperature, is reactive with stomach acids -   
   but it is also reactive with water, and the caustic hydroxide produced   
   will burn your throat/oesophagus/stomach lining.   
      
   Neither form is suitable for use as a dietary supplement.   
      
      
   -- Peter Fairbrother   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)