As known as we do low carb each of us has a little different point we come to learn is our ''dont go over'' carbs--- mine is 20 carbs a day if I want to loose weight- to maintain my loss I have to stay 21 -25 a day - when pinkish instead of deep purple we are still burning fat and in ketosis - and this color changes throughout the day Im sure you have noticed , and I have learned stress is a major factor even if I stuck to this , sometimes I think we just have to go with the flow and stick to our own plan and it will take care of itself .
Energy efficiency- Took me about a year to get all this figured out for me and untill I actually had some energy took a year - so I learned I needed more salt , fat , and protein to eat for more energy if I wanted to feel energy. Sorry if im rambling I am real passionate about all this.