There's two things being mentioned here, going low-to-no-carb, and going to a time-restricted eating schedule. My understanding is that ketosis is a function o

There's two things being mentioned here, going low-to-no-carb, and going to a time-restricted eating schedule. My understanding is that ketosis is a function of low/no carb eating; I think further that in time-restricted eating, if you're losing weight, it's primarily from simply taking in fewer calories overall. Have I misunderstood?