Hi
@Leesajo and welcome. Well done on trying to find help for your mum. Her diet sounds very much like mine was, I am also a very fussy eater who loved stodgy food so I relate totally to her not wanting to change. We get so used to what we like that for anybody it is difficult, I think probably more so as your mum is elderly and if that has been her diet for many years it will be hard for her to change. As
@grovesy says slowly slowly will be the best way to go. I changed my diet drastically and it was very difficult as I hated what I was having to eat. I have now upped my carbs from my initial diet but I am able to exercise quite a bit which is helpful in counteracting the carbs. Is your mum able to do any form of exercise, even a gentle walk each day for example as this will help. Firstly I would recommend changing her bread to a low carb version, that way she is not giving up her sandwich but reducing her carb intake. There are various ones on the market, I hear Livlife, I think that’s what it is called, is not a bad one but the crisps are not good, could she cope with having something different, eg a few walnuts/almonds/Brazil’s or if she really won’t give them up, making half a packet instead of a whole.
Where breakfast is concerned an omelette is better than cereal but I confess that I do have one weetabix in the morning, fruit is ok as long as it ends in berries, some fruits are high in natural sugars eg mangoes, grapes etc. Bananas are also quite high in carbs but a small one occasionally would be ok.
A lot is going to depend on how your mum reacts to changes and how soon the insulin starts to have an effect. It seems that you don’t know yet if your mum is T1, T2 or other so it is difficult to guide you too much. If your mum is type 1 then you will be able to adjust her insulin to what she is eating but if she is T2 and can come off insulin when her levels are under better control then you will really have to watch the carbs.
I hope this doesn’t confuse you, I agree there is very little info out there and hopefully you will get a diagnosis and further help when this is established. In the meantime don’t hesitate to ask any questions and good luck to you and your mum. Sue x