Does sugar-free gum break a fast? Is it a good idea to have one cheat day per week? And can intermittent fasting cause hormonal imbalances in women?
It's time for this week's Q&A about intermittent fasting and low carb with Dr. Jason Fung:
Does sugar-free gum break a fast?
I fast by skipping breakfast. I worry that gum is breaking my fast unintentionally. Everyone says something different!Thanks,
Anne
Technically yes, sugar free gum would not be allowed on a fast. But the amount of sugar alcohol in a stick of gum is so small that it likely makes no difference. If you are doing well with gum, then continue. If you are not getting the results you think you should, then cut it out. But I wouldn't worry a lot about gum, unless you are eating a lot of it.
Dr. Jason Fung
Cheat day while on LCHF and intermittent fasting
If I am on an LCHF and on alternate day fasting diet, is it better to have one cheat day a week, or not?Thank you,
Tony
It's not better to have a cheat day unless it allows you to follow a stricter diet otherwise. Some people do well, and others not. I don't recommend a cheat day in general.
Dr. Jason Fung
I've read that IF can cause hormone imbalances with women, is this true?
While I know this is one study, I didn't know if you've come across this through your program with other women? I've read about similar problems online with other women.The reason I am asking is because I have been doing IF, 36-hour fasts every other day for eihgt weeks with success. I have lost 15 lbs (7 kg) and my blood pressure has dropped. However, I am noticing hormonal problems with missed periods, and dry skin. Also a friend of mine, who is also doing IF, has begun to experience hot flashes. We are both in our late 40's, and while we are getting close to menopause, it seems a bit early, and for us to suddenly start experiencing these symptoms when we began IF seems too coincidental.
While I am pleased with the results and I intend to continue with IF, I am wondering if you have any recommendations or suggestions? Perhaps a more modified intermittent-fasting approach?
Thank you,
Marci
Women can fast. That study is on rats. If you are a young rat, then maybe you shouldn't fast. If you are a human adult, then yes, you may fast. We have had several thousand years of human history to guide us that yes, women may fast with equal efficacy to men. I've treated hundreds of women. Yes, some have problems fasting, but so do some men. There's no difference.
Dr. Jason Fung
Learn more about women and fasting
