Sweeteners might help if you need to have that taste in your drinks - these days I have coffee with cream, and find that my sense of taste has altered so that beetroot and peas taste sweet. It is three years since diagnosis now.
I eat a lot of meat, seafood, eggs and cheese, full fat yoghurts, salad and low carb stir fries - really enjoy them, and a couple of times a week I have frozen berries with cream and sugar free jelly, sometimes with yoghurt mixed in and whipped up to make it frothy. The food is so nutritious that I only need to eat twice a day, morning and evening seem best for me, with most carbs at night time. I have a test meter, a Tee 2 from Spirit Healthcare, and normally find my after eating level is under 7mmol/l which puts me in the normal range.