I've done IF and lost 40 lbs with it. My advice is to eat something really small, and see what the smallest breakfast you can get away with is. After a month or

I've done IF and lost 40 lbs with it. My advice is to eat something really small, and see what the smallest breakfast you can get away with is. After a month or so, try stopping breakfast and see how you make out then. My understanding is that the gut and vagus nerve are very sensitive to disruptions, any changes in routine have large initial perceived effects, until a new equilibrium is established. I think this mechanism is why diets are so faddish and people think they have food allergies when they actually don't. So, mitigate the worst of the symptoms, be willing to accept some temporary discomfort, and iterate towards a better diet over time.