Thanks to mehhh2015 and noblehead I now know that reduced carb should be available. And 2.2g/100mL sounds good to me, so I will search a bit wider and see if I can find a source.
I'm not all that confident though, as I have looked into this before. You know there's about a dozen different varieties of low fat milk at "my" supermarket, but not even one low carb variety.
At this point I think I'm probably going to have to make my own. Here is my proposed recipe (for approx one day's supply).
- One heaped (or two level) desert spoon(s) of unsweetened whey protein.
- 300 mL water
- 300 mL regular milk
- 100 mL cream.
I'm going to mix that up tomorrow and see how it tastes. I've just got to buy the whey protein, so I'll update here after I've tested it.