The glycerol that was created will be converted into glucose in a process called gluconeogenesis. This is a normal metabolic process that creates glucose from the amino acids in protein, lactate from the muscles, and the glycerol from fatty acids.
Glucose is needed by the body, in small amounts, to maintain good health – but carbohydrates aren’t needed. Your liver will always make sure you have enough glucose in your bloodstream for the body to perform healthily, no matter what.
In fact, about 56% of excess protein will be turned into glucose in your blood stream – this is why too much protein is a bad thing and can knock you out of ketosis. Don’t worry – as long as you are following your macros, this will not be a problem for you.