I have just started on huel today and am type 2, just trying to work out how many carbs in a 3 scoop vanilla portion
3 scoops is 456 calories - according to http://howmuchhuel.com/
Huel is 37% carbs - according to https://huel.com/pages/nutritional-information-and-ingredients#macro
So 456 x 37% is approx 169 calories.
It is worth noting that it is low GI. Also people here often say scoops are inaccurate so you can use scales if you need to be precise.