Not quite pure, but not far off- about 70g per 100g I think.
I'd explain they might give you an egg or yogurt.
Well doctor was a bit
didn't look in my ears, didn't mention my ears and when I mentioned it, she dismissed it.
She thinks it's low blood pressure and maybe even blood sugars. Her advice was to eat 6/7 small meals instead of 3.
Said to dp, maybe I should have asked her what she recommends? My bet would be crackers, wholemeal bread, lots of slow releasing carbs. 
It might be those things, but a look in my ears might have been good practice!
Sigh. If it happens again, I'll ask for the main 2 doctors.