Guys, we have to be careful about telling people that they have to eat 20 grams of carbs or less to be in ketosis. It’s not true for most people. The ‘less then 20 net gram’ carb number is the number below which almost everyone will be in ketosis and for that reason we recommend it as a starting value. However, lots of people are in ketosis well above that. I measured myself for weeks while eating loads of veggies, tons of dairy and a Mars bar every single day for an average carb count of about 85 grams and I was still in mild ketosis every day.
However @steka, the basic point is correct. If you are overeating carbs even while only having one meal a day you may not be able to lose weight. You may have a tolerance for carbohydrates that is well below what you are eating. I recommend at the very least, cut it back to 50 grams and see if you start losing again. If you do, you may be able to raise it some more and still be in mild ketosis. You may, however, find that even 50 grams is not low enough. It all depends on how deranged you metabolism is already.
Oh, and by the way, if you are consuming any other calories in your day, even cream or sugar in coffee in the morning, or a small snack after dinner than you won’t be OMAD. To really make that work for you it needs to be a single insulin pulse a day. So 100% of daily calories in a single feeding block of an hour.