Thanks for this Marshall.  dee

On 21 Apr 2010, at 18:38, Marshall Dudley wrote:

> Yes, D3 makes a good rat poison, especially when combined with 
> anticoagulants. It kills rats for the same reason it help people, it 
> mobilizes calcium.  But too much of it and it becomes toxic, mobilizing too 
> much calcium.  Everything is toxic if too much is consumed, even water. Salt 
> is very toxic to things as well, fresh water fish, slugs and microbes, but is 
> also an essential nutrient.  But if you eat too much salt it will kill you 
> too.  D3 is safe for adult humans up to 10,000 IU a day long term.
> 
> 400 IU is 40 micrograms. Rat LD50 is 42 mg/kg. If you weight 100 kg, then the 
> LD50 would likely be around 4.2 grams.   You could reach this level by taking 
> approximately 90,000 400 UI pills at once, but most likely you would succumb 
> to the huge amount of oil in 90,000 or the stomach would burst from the 
> volume of these pills first.
> 
> Marshall
> 


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