You are absolutely right on the "availability". Most of the time I've ordered groceries online which requires me to place orders days before delivery. Due to the minimums (90€) I had to bulk purchase and somewhat plan meals. This reduced my grocery shopping occasions to 2 occasions per months and there was no instant gratification (sweets, fast food, "bad stuff") possible.

That said, after the first couple of weeks my taste buds somewhat changed and I taste sugar in raw cooked vegetables (carrots, brokkoli, brussel sprouts). I now love raw, frozen vegetables without any additions steamed in the microwave or steam cooker. Great vitamin and fibre source and one can add even a high-fat dipping sauce or some cheese without screwing up the calories.