From what I understand, going too low causes protein and/or ketones to “spill” into your urine. There is some debate about whether this is OK, but let me just warn you that protein in the urine is one of the signs they watch for when they suspect pre-eclampsia. So even if you believe ketosis is safe (as do many low-carbers), I’d be a little bit worried a out raising the risk of a pre-e diagnosis. (When I got badly swollen, they were so sure that I must have pre-e despite perfect blood pressure that they had me do a 24-hour urine sample to look for protein after my routine in-office sample showed none.) Just FYI.
I doubt a LOW carb diet is a great idea, but simply reducing carbs probably isn’t a terrible idea. I’d probably talk to one of my doctors a out a safe lowish carb goal.