When one is instructed to fast for 12 hours prior to blood tests, how strict is it and the relevance of what and when something is eaten during that time?"?

When one is instructed to fast for 12 hours prior to blood tests, how strict is it and the relevance of what and when something is eaten during that time?"?
by

1 Answer

Answer :

It fucks with the results, and they become useless as a diagnostic tool. Be strict about it, so your MD will have good data.
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