if your metabolism is using fat for energy, there are no headaches or hunger - you might feel a little hungry for a few minutes but it just goes away...most Ive done is 48 hr but my next goal is 72
if your metabolism is using fat for energy, there are no headaches or hunger - you might feel a little hungry for a few minutes but it just goes away...most Ive done is 48 hr but my next goal is 72
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