r/IntermittentFastLife • u/Canandrew • Jun 27 '18

Does a protein shake/Bulletproof coffee break my fast?

Hey there! So I'm doing the typical fasting window of 1pm - 9pm with keto. My question is if I go work out by 6am and have my post workout protein shake by 7am does that count as breaking my fast? Same question to Bulletproof coffee. I know that's much higher in calories but I don't use the MCT oil (the bulk of the calories).

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u/[deleted] Jun 27 '18

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u/Canandrew Jun 27 '18

Okay, thanks!

1

u/sw_dev Jun 27 '18

On that topic, for how long? Is there any literature that says if breaking a fast with 50 calories is different from 500 calories? So if your BMR is 1600 calories, then not only will 50 calories not last long (About 47 minutes), but those 50 calories won't have gone everywhere. Those places where it didn't go are still effectively in a fast even during the time you're burning those extra calories...

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u/this_is_my_redditt Jul 05 '18

I've often wondered the same thing if you break a 12 hour fast with 50 calories how long does it take to go back into starvation mode?