There’s some truth in this. Those “crude” insulins were all we had (I’m talking '70s, early '80s), BG meters were only just on the market and even then we knew how basically pointless urine testing was, most of us followed the orthodox regimented diabetic diet, A1c wasn’t even invented yet, and what the heck was a basal? To take our current knowledge about, for instance, insulin action and carb metabolism, combined with current technology like BG meters, and use the older insulins could be interesting.
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