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Pre-workout while fasting

I recently started going to the gym and was wondering, does pre-workout break a fast and if so how do you guys overcome this?

My workouts most often fall in my fasting period. ?

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Answer

There may only be 5-20 calories in pre-workout, especially if it is a sugar free type. Some purists may sniff at that still, but I doubt that it is enough to spike insulin or stop ketosis at all.

Personally, I take creatine, pre-workout, multi-vitamin and sometimes low sodium V8 (for electrolytes) during my own type of 20-24 hours fasts prior to an hour long work out. I have not had trouble maintaining or adjusting weight because of this or felt anything strange.

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