I am down another .4 lbs today! Hurray!
To summarize what is working for me, so far it is mixing up and drinking the ketone shake, using intermittent fasting and aiming for eating low carb but not being too strict about it.
I knew that eating simple carbs and sugar and the extra weight they caused, at the very least, were contributing to my mobility issues. I also knew the longer I let it go, the harder it would be to change.