Last week I discovered a new unsweetened almond milk on the supermarket shelves. Only 170kJ per 250ml serve. I'm going to try it for a little while in place of oat milk (just for a change). Unfortunately, I simply cannot have tea or coffee without some sort of whitener.
I've found that most alternatives to animal milk have a catch - either a high Glycemic Index (rice), or loaded with extra sugar (oat), or potential health problems (soy, and almond). This is probably as good as it gets.