I haven’t really had a “cheat” meal. I have pushed the limits for carbs though a few times. Early on, maybe was eating keto for a month or two by then, I ate a few too many fried chicken legs. Three of them to be precise. I knew it was a bad idea being T2DM and all, but it tasted so good. Plus, I made them myself. So I had to try one, which led to three, which led me to getting my BG test kit out and dang near going into shock. I seem to remember it being around 180 or so. And it stayed up there for a few hours. Jumping on the stationary bike brought it back way down. But I felt like crap both mentally and physically. I guess it was mostly mental. But it did stress me out.
More recently while out with the wife doing some errands she asked if we could stop at a Chinese buffet. This place is big enough that I should be able to make several keto dishes from what’s available. But I was wrong. Even the things that really had no business having sugar in then did. Steak, tasted very sweet. BBQ chicken, even removing the sauce/skin from it was very sweet meat. So forth and so on. I did make a very full plate. Even went back for seconds. But I also got quite full pretty quickly.
I posted about this elsewhere around the forum here, where I used actual numbers from my BG testing. I don’t remember them off the top of my head now seeing as it’s been a couple of weeks. But it was something like this. I tested when we got there. BG is mid 80’s. After sitting there eating for about 30 minutes it was up to just under 120. Then another 30 minutes later it was near 105 or so. I was surprised I didn’t get sugar slammed. And that I rebounded so quickly. I guess it could have been all the walking around we did before the meal had my muscles ready for the glucose. As I know from experience when I over do it, a stationary bike ride for an hour drops me from 180 back to 80’s. So perhaps pre eating exercise can help as well.
I felt a little off after eating, but I didn’t feel too bad. I was chiding myself, telling the wife that this could have upset my ketosis and I needed to be careful for a few days. But next morning I had plenty of color on the pee stick, so I went right back into fat burning and felt great.