My question is: in the leaflet it says not to low carb without my GP's permission. Any ideas why the leaflet says this?
It seems to be associated with a slightly increased risk of ketoacidosis.
Apart from this (I can't find by how much the risk is increased), ketoacidosis will be more difficult to quickly diagnose if you're low carb, because you'll have ketones anyway from eating very few carbs. And testing for ketones is the quickest way to find out if you're heading for a possible DKA.
In T1's, it's recommended to test for ketones when having prolonged high BG's (higher 10's) as DKA only comes with high BG's usually.
So no high BG, no risk of DKA for us.
But on flozins, like empagliflozin, you can go into DKA without having high BG (euglyceamic ketoacidosis), which on its own increases the risk a diagnosis will be missed or written of as food poisoning or such. Alarm signals can be missed when not being high.
If you produce ketones because of your diet, this takes away the second easy diagnostic tool. No sense in testing for ketones if you already know they are there.
Also, it says to drink plenty, with no indication of what plenty means.
This is because it works by making you pee out glucose, so you might be peeing more often, and your body prefers the glucose to be as diluted as possible when it gets rid of it.
It might also help in preventing yeast infections and UTI's, as yeasts and bacteria love a sweet environment.