Years and almost every competetive bodybuilder I hang out with does also suprised its such taboo on here fogured more guys would know about it . and as far as safety there is no saftey risk this is not exogenous insulin there is no going hypo it just makes your insulin fuction the way its supost too if your carbs are super low and your insulin sensitivity is super hivh when you take it you could get sleepy but not die as you could injecting insulin
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what's your dosing protocol?