As someone who went off keto all the time since the sudden changes I call fat adaptation, I don’t worry at all. I decided on my first week that I never will abandon keto for good. I go off, I come back soon. I don’t even understand why I wanted keto as it’s almost the same as low-carb and I never lost fat on it permanently… All my fat losing happened on low-carb. But then I tried extreme low-carb and I am motivated to stick to it. It’s horrible when I can’t due to lack of proper food. But I know what to do now.
I surely will go off but I come back. It works for me.
It’s probably very easy to go over my personal ketosis carb limit using only animal products without added carbs… But I like fruits, potatoes, grains can be tasty too… I stopped eating vegetables (going over 40g using cauliflowers were ridiculously easy years ago but I actually did high-carb days using mostly vegetables even before) but green peas are exceptional little wonders. And keto bread is somewhat carby too, it would be hard to overeat carbs (over 45g net would do for me) using only that but it can help a little.
I still can eat much carbs (like, my old 80g net) but I don’t need it. And it would be awful every day.
I am pretty sure I would maintain my current weight on any diet I am able to do, well, it’s experience…
Health and well-being is a bigger concern but as I am a somewhat health-conscious hedonist, I don’t sabotage these too much and when I have my bad moments, my body can handle it (it’s very clear when it can’t or doesn’t want to).
I can’t go back to high-carb. I can’t even go back to eating vegetables in bigger amounts. It’s over. My crazy days are better than years ago.
Oh and if I go back for a day and eat some carby stuff, it’s almost never worth it (and I usually stop extremely soon. I am “allowed” to eat it that day. No thanks). So I just stop having those days (or have them way less frequently) and eat my more tempting and rewarding normal food. I mostly have problems when I lack good options.
So if you even put carbs into my mouth and make me swallow, I bounce back soon enough. I don’t need to be afraid. Some people do, I am aware.