Thank you for your reply RazzleDazzleDavey. My diabetic nurse and my doctor both say I should continue eating a "balanced diet" including bread, pasta and potatoes, avoiding butter, but eating low fat spread.
Although I appreciate it's sometimes difficult to challenge them, you need to query that advice again with your GP and Diabetic Nurse, given the simple fact that your HbA1c has risen sharply
in spite of your 'balanced' diet and they need to reappraise what can be done to redress the problem
, other than just putting you on Metformin (which is all my former GP originally did with me, BTW).
As you'll notice if you read the various threads on this site, quite a few people on here (me included) have achieved/regained better control of our BG by significantly reducing, or even cutting out completely, food that is high in carbohydrates (e.g. bread, potatoes, rice, pasta etc. and generally sugary food and fruit), in favour of increasing our intake of low-carb vegetables, with meat and fish and some fatty foods (such as cheese) making up the remainder of our diet. If excess weight is a concern, we'll reduce our fat intake, but otherwise we'll not avoid fat in our daily diet.
We're all different, however, and some foods will cause different responses in BG, from person-to-person. A meter will not only help you see which foods do that but it will help you track progress and make adjustments to your diet, day-to-day. It' also invaluable as a morale booster, when you are able to see you're making progress - provided you're not too downhearted when your readings sometimes unaccountably go the other way .....
Best of luck with it all.