done
I really have to point out the dangers in the information you have provided on this page and the amount of damage which following it could cause to a person with type 2 diabetes.
For someone who is trying to limit the amount of circulating glucose in their body, the 'snacks' you have suggested are high in carbohydrates, both sugars and starches, which will lead to extended periods of high blood glucose levels and contribute to damage throughout the body.
Tea cake (30g of starch, fructose, sucrose), banana (30g of fructose), syrup (10g of sucrose). 70g of carbohydrate is going to increase my blood sugar levels by at least 7mmol for several hours.
Smoothies are also a danger. 200 ml semi-skimmed milk (10g lactose), 1 banana (30g of fructose) - liquidising makes the sugars rapidly absorbed so 40g+ of carbohydrate would raise my blood sugar levels immediately by at least 4mmol and keep it high for several hours.
You have also advocated pitta bread (35g carb), focaccia (23g carb), ciabatta (50g carb), noodles (45g carb), fruit (approx 30g carb) - all of these are unsuitable for anyone who is unable to process carbohydrates.
More appropriate snacks, if needed at all, would be small amounts of cheese, a few nuts, a few berries, cold meats, vegetable sticks, none of which would have much effect on blood sugar levels. Indeed, a couple of digestive biscuits at 10g of carb each would likely do Roy less harm than the things you have suggested.