Low carb does not necessarily mean low fat, however, it isn’t usually recommended to eat low in both macronutrients. Your body needs to use either carbs or fat as energy and if it doesn’t have either, it can start burning your muscle for energy (which is not recommended).
Some people who are low fat, eat less then 30% of their total calories from fat. Unfortunately, we do not have a tracker to determine your grams of fat.
When it comes to treating disease, it is always recommend to follow your doctors orders.