I’m not saying you shouldn’t have berries before bedtime, but I do wonder if you have actually tried LCHF with very low carbs, maybe less than 30 a day, virtually all of them coming from above ground vegetables / salad. The reason I ask is that it is well reported all over the Low Carb forums (many of which are nothing to do with diabetes) that the most striking thing about eating this way is it is a massive appetite suppressant. I always have a ‘good breakfast’ with protein and fat - so bacon and eggs, smoked haddock and poached eggs, smoked salmon and scrambled eggs or an omelette, minimum 2 eggs, and I don’t eat again till I am hungry and that is usually evening meal, and after that I don’t eat again till breakfast next day, and I am never hungry! Sometimes I get ‘bored’ and might have a few nuts or a chunk of cheese, but never hungry. I think it’s to do with lowering insulin levels and lowering blood glucose levels, the drivers of hunger.
I’d never have 0% yoghurt, only full fat unsweetened Greek Yoghurt, I think that artificial sweeteners drive hunger / cravings in many people and I prefer to only eat ‘real food’.