Stay away from anything with maltitol - it gives most people cramping and terrible diarrhea and can spike blood sugar. Out of all the artificial sweeteners, it is the worst. Most "diabetic candy" is full of it. Years ago when on a weight loss diet, I bought some diabetic candy with it in - never again!
I agree that it's generally best to stay away from artificial sweeteners as most reactivate sugar cravings in those prone to them (like me) and focus on unprocessed food. (I've done very little low carb baking for this reason, just one dessert to take to a family Canadian Thanksgiving). I will probably make a dish for Christmas but otherwise I stay away from them.
If you do use them, erythritol or liquid Stevia is probably the best (always check labels thoroughly as some sweeteners include sugar or dextrose/maltodextrin which is worse than table sugar.) . For low carb baking recipes, I hear Carolyn Ketchum is reliable (north American measures) .
https://alldayidreamaboutfood.com/blog/
Check labels and beware of those packets of granular artificial sweeteners- most use dextrose or maltodextrin as a cheap filler - it is twice as bad for diabetics as table sugar. They are not diabetic friendly at all. (I don't know if they are sold in the UK, but they are available here in north America.)
BTW cheese is not bad for most diabetics and neither is fat. A low carb diet needs fat, fat will prevent you from getting hungry and is necessary, carbs aren't. (This is especially true when you reduce carbs to lower levels.) I know it's the opposite of what you've been told.
Fat also helps slow down the digestion, reducing blood sugar spikes. Since on my goals is also weight loss, I don't add additional fat like some but I certainly try to eat healthy fats, use full fat products and I don't shy away from fat. Look at the first graphic on this page, it shows the effect of carbs, protein and fat on blood insulin.
https://blog.virtahealth.com/reversing-diabetes-101-truth-about-carbs-and-blood-sugar/
I ate a low fat diet for years and tried many low fat diets. I craved cheese then (and would binge on it) because I didn't eat enough fat. (Other than sweets, my binge foods tend to be high fat like peanut butter probably because my body wasn't getting enough.)
I now eat fat (moderate amounts) and have found it much easier to lose weight than I ever did on low fat diet (almost 44 lbs lost since the end of June.) Eating more fat prevents me from being hungry all the time like I was on low fat diets
I eat to satiety (no longer hungry). I find eating low carb, I have normal hunger for the first time in my life and little desire to binge eat (the cravings were worse on low fat diets). I think that this is because eating less carbs and more fat has normalized my satiety (hunger) mechanisms.