don’t do anything you are uncomfortable with, If you think your Dr has it wrong, seek a second medical opinion.
DKA is a whole different ball game and sounds like what the dr is describing.
It’s not unusual for some doctors to not understand dietary ketones… lowering bolus insulin to the g carbs and maybe 1/2 the protein eaten. With normal BG and hydration, any resulting dietary ketones below 3 is fine 1 to 3 is the target range
this may help with DKA ketones