For me I mostly just try to log the high macro and/or calorie items. Like if I make a Caesar dressing I’m mostly counting the oil and if I’m being really meticulous I’ll measure the Parmesan and anchovy content. But I’ll ignore the 2tbsp lemon juice, garlic, mustard, etc. since it’s counting so little towards the totals I care about.
If you’re trying to measure your vitamin intake this may not work for you, though.
For vitamins are probably easier to start in the other end and have a blood test to check how you're doing. I have no idea if that would involve selling your first born in the US though