Absolutely agree. The prob that I can see is that she has a "set calorie threshold" that she wants to stay within and your cals are made up on only the 3 macros: protein, fat, carbs. So if you keep carbs low enough to get into keto...for most of us that's around 30g total carb max, then you have to fill up her calorie threshold with either protein or fat. OR drop the cals. Which is what I do. So she either has to eat a ton of protein (which can keep you out of ketosis) or she has to eat a wad of fat, which none of us need right now. Right? The solution is to really simply just hit your daily protein goal, stay at your carb # that you've set and let fat fall until you are comfortable and where those cals end up are where they end up. Mine usually is somewhere between 650-850 per day using that general rule.