I am wondering this because both of these 2 things affect the liver (and are possibly absorbed by it?) and I know that the liver is where ketones and many hormones are produced. Thus, will these things activate the liver and not allow it to fast?
Any insight is appreciated. Thanks.
Major in the majors.
Edit: to clarify. When talking about fasting, sure any calorie breaks your fast. But major in the majors. Will it really disrupt all possible metabolic benefits of fasting by adding some stevia to your morning tea? No. Eating a cheeseburger will. Having a teaspoon of sugar will.
Yes there are toxins in the world, but not all are interrelated in a meaningful way. Even if there was a meaningful hormone disruption from handling a receipt (there isn’t: https://theconversation.com/will-holding-thermal-printer-paper-really-send-your-bisphenol-a-levels-soaring-33328) then that’s a minor detail compared to eating a cheeseburger.
To be “fasted” means that your body is in a specific metabolic state where there’s no more glucose (sugar) or glycogen (stored sugar) left for energy. There are a bunch of hormonal and metabolic processes that take place that transition you from a “fed” (aka “unfasted) to a fasted state that include gluconeogenisis, lipolysis, ketogenesis, proteolysis, etc. These metabolic processes are reliant on sugar that’s available - or unavailable - in your body.
Hormones like estrogen that you’re worried about have a direct relationship to all of the previous metabolic states but in a tangential way. Introduction of exogenous hormones (like receipts and skin care) could affect how quickly your body transitions from one to another, but in that case we’re talking about some very very serious hormonal disruption.
Whether your hormones like it or not, if there is no energy coming in from food, you will be fasted. There’s nothing else your body can do about it. Individuals with true estrogen disruption may or may not get there quicker or slower. As far as I’ve come across, I haven’t seen anything to suggest that it would have a marked impact on fasting.
But will it break a fast? No. Not for as long as we’re still animals.