Hi again - 80 grams is quite generous as many people eat less than this as you have now seen. No I'm not hungry on this. Here is a copy of my diet:
This is what I do. No guarantee of accuracy of calculations though

I lost 5 stone doing this. The weight loss was helped by Metformin. It's all down to portion size. My husband doles out the food so I don't need to use willpower.
1 multivitamin tab
Breakfast : full fat Total Greek yoghurt with sweetner. coffee with very little cream
Lunch: meat or fish, veg (not always don't eat my 5 a day - naughty!), carby food from list below, 2%fat Total Greek yoghurt:. Coffee
Supper: meat (nearly always cold) , usually brown bread roll, another 2% Total Greek yoghurt.
Very occasional treat of raspberries or strawberries and I cheat and don't count the carbs! Apparently anything ending in 'berry' is OK for BG.
No snacks!
No alcohol. Except for the very occasional small glass of red wine which is good for BG.
Drink light lemonade and label says it contains no carbs.
I trim fat off meat as I don't like it.
Dieticians say you should eat more carbs than this but there are some people on the Forum who hardly eat any at all.
Here are the portion sizes and calculations of numbers of carbs. Carb numbers are taken from what is marked on the packet.
Full fat Joghurt 5.4g carg
2% fat joghurt 6.5g carb
Brown bread roll (62g) 30 g carb
Rice (30g) 23g carb
Rosti potatoes(65g) 11 gm carb
Gratin potatoes one round 15g carb
Chips (60g) 16g carb
Pasta(60g) 36g carb
Polenta(20g) 23g carb
Ravioli(90g includes filling) 29g carb
Roast potatoes(50g) 12g carbs
Cordon bleu(slice veal with breadcrumbs)13.5g carbs
Flageolet beans (65g) 5g carbs.
Once again, no guarantees

Hope this is useful.