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Originally Posted by JediSurfer  why was a rabbit used. doesnt make any sense. surely a diabetic adult human would be far more effective. |
The problem with adult humans is that they are all so different. They have varying insulin requirements and levels of insulin sensitivity. Rabbits are pretty much all the same. Humans also don't like being used as guinea-pigs (or rabbits) for scientific experiments.
Google brings up the following definition for a unit of insulin :
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The activity contained in 1/22 milligram of the international standard of zinc-insulin crystals.
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... but I guess that quantification must have been arrived at by relating it to some level of effect.
