I'm grateful to the ever-informative Ted Hutchinson for indirectly setting me off on a path that got me looking first at Magnesium Bicarbonate
(e.g. his pointer to a recipe for making it:
), and alerting me to the possible dangers of being in an over-acid state (as detected by measuring saliva/urine - see the thread "Is low carb good for teeth and health?"
I got to looking at ways of "alkalizing" oneself, and it occurred to me that cheap and cheerful sodium bicarbonate, aka, baking soda, should be effective. However, a research paper pointed to (maybe indirectly) by one of Ted's many links, seemed to indicate that it was only potassium bicarbonate that was effective, at least to the extent of preventing calcium excretion in the urine. Nevertheless, it seems that humble baking soda could still be incredibly useful, at least according to one doctor. Have a look at this YouTube channel:
and e.g. the video "DeficiÃªncia de MagnÃ©sio: Nenhum teste" (It's actually in English!).
I actually found that indirectly from this webpage (which I found looking for magnesium bicarbonate):
There's an interesting piece in there that says you can get the same (or maybe even better) effect as magnesium bicarbonate, by taking magnesium chloride and sodium bicarbonate (baking soda) at slightly different times.
Also interesting, is that magnesium chloride (which some say is the most stable, and therefore the most bioavailable form of magnesium supplement) can also be very affectively taken externally, e.g in the bath, as MgCl salt crystals, or as an MgCL "oil" sprayed on to the skin. See here:
I notice that in the UK, Holland and Barrett have MgCl crystals for a relatively low price. However, tablets and the oil seem fairly expensive wherever you buy them. Worth shopping around I suppose.
(Oh, and according to Dr Mark Hyman on one of those YouTube videos, an Epsom Salts bath is a good source. Not seen that stuff since I was a kid. e.g. Â£7.60 for 2Kg on amazon.co.uk, so it's not going to break the bank. There is a (more expensive) food grade variety available for internal use. Just to make clear, Epsom Salts is the sulphate (sulfate) form of Mg, not the chloride).
Most dramatically perhaps, is the claimed importance of humble baking soda in the most serious diseases, according to Mark Sircus: