Yeah, but if she's getting so hungry that she fails, then in a sense, the rules failed. I lost the weight and kept it off because I was hungry less often, and could make better choices even when I broke the rules. A chunk of brisket meant I could go several hours without eating. Some strange person might find rice keeps them full for hours- in which case I'd abandon my low carb jihadism and tell them to stick with the rice (though add nutritionally dense stuff like oysters, liver, etc...).
Discussion
It's mostly lack of time/energy to cook and getting takeaway which almost always have high carbs
Rotissiere chicken (read the ingredient label- probably best is Whole Foods right now) and a big slow cooker to cook brisket in. Appetite should drop down in a week or two, and then it will all seem easier. Probably don't want to drink calories, although I often violated this edict with wine. Seems like maybe women can't get away with this as well as I did though.
I have followed the same diet, much less strictly, and lost half a kg.