Wednesday, January 9, 2019

Intermittent Fast, Coffee, and Ketones

Will coffee break your Fast?  Let's find out shall we.

I am doing several consecutive days of intermittent fasts. Nothing grandiose, just one's run of the mill 18 hours of not eating. Ah... but coffee, will coffee interfere with my Ketones?  Will my ketone level drop if I drink two cups of black coffee in the middle of my intermittent fast? 

I have read that the coffee will do this, yet others that research this issue say it will not.  So I did an experiment upon myself to find out. I made two cups of excellent black coffee (Gevalia, Traditional roast, made with a Melita drip system).



At 8:30 AM my ketones circa 3.0, this is while fasting with no breakfast today. At 9 o'clock AM I drank one strong 8oz (24ml) coffee. I waited 30 minutes and again tested my ketone levels using a strip. Post coffee my ketones tested at 4.0. So, there was no effect upon my ketone level from my black coffee. The rise in my Ketones most likely from being further along in the fast.



There you have it. For me at least, drinking black coffee during an intermittent fast had no negative effect upon my ketone level.

I have been in strict Keto well into 10 months now. It has been an interesting and rewarding path. I am doing more fasts to enhance autophagy, which is greatly increased during the fasting process.  Autophagy increases circa the 16 hour time span. I have done the odd 'Dry' fast, which is no food or drink, including no water as well, they are the most effective. But, a quality of life issue, sometimes I want my morning coffee and that's that.  

© 2019 Barry R McCain     

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