Is 462 ng enough to cause a meth overdose???

my father pased about a month ago and there sayig it was a meth overdose but it just doesnt seem like a lot to me. is it enough??
Answer:
Who is to say that it is too much or not enough? Obviously it was too much. One is too many (a thousand is never enough). Every person is different, every bag of dope is different. One person can die from bee sting, another person can survive 18 consecutive stings. Who is to say that it is too much or not enough?

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