I’ve had success in weigh loss with IF and Extended Fasting. But, I learned that when I do so, I end up having issues with my sleep Apnea overnight, in spite of using a CPAP. The Respirologist suggested the cause is the low to no carbohydrates ended up lowering my C02 overnight and caused the apnea issues. I’ve dabbled with using Waxy Maize which is a complex carbohydrate powder to “cover” the fasting period in the morning until my eating window. Basically stop eating at 7pm, have the Waxy Maize at 7am= 107 calories and 28.5g carbs. Then I eat at 1pm+ depending how I feel for an 18:6 or 20:4 etc.
I’ve tested the approach and it mitigates the overnight problem, but now I’m digging in for the longer term and will tweak if needed based on any evidence based suggestions as well as comments on the mechanisms at work with this protocol (hunger is still in check)
A very niche issue so not sure what feedback I’ll get. Dispensing with the comments that it is not fasting then, agreed, my personal benefit is this approach allows me to lower calories without being hungry all day.
To add, I’ve looked at the Fasting mimicking diet and not interested as I then am restricting what I eat vs my approach is simple calorie mgmt.
Could you describe your “issues” in more detail?
You should post about this issue on the CPAP subreddits. However, I don’t buy the idea that fasting is causing apnea (stopping your breathing). Human beings are evolved to survive long periods (like weeks) without food, where we burn our body fat. (We are also evolved to hate burning body fat, but we do it without suffering actual harm.).
Having low CO2 (carbon dioxide) seems an odd problem, and also not real likely. CO2 is the waste product we breathe out, and we don’t want to have more of it. If you fail to breathe it out, you will have a temporary headache, but the problem isn’t from having too little, but rather from building up too much CO2 in your bloodstream.
I’m pretty sure most CPAPs do not monitor CO2 (or any blood gases). Rather, they monitor air pressure and air flow.