But in insulin diabetes as first type..

Use of leaves blueberry with drugs is benefit,as 4 parts of leaves blueberry , leaves mint piperine part, bark buckthorn 2 parts, seeds flax 2 parts, herb hypericum 3 parts, fl.tansy three parts, fl.immortelle 7 parts, root nettle 5 parts,as 4 tbl.sp. mass ads in thermos in one l. ads hot water, infuse half days, 1/2 glass drinks for 3 times/day before meal, warm as for one l. for 2.5 days.

Or leaves blueberry 2 parts, root dandelion 2 part, leaves nettle 2 parts, pods kidney beans 2 parts, herb galega 2 parts, and 4  tbl.sp. mass ads into one l. of hot water in thermos, and cook same as alternate collections for every month.

And one driver for helicopter on 1970 y. had suffered from bad vision, and doctor advices him to eat blueberry, and he eaten 1/2 glass for three times/day on rest time and between flies within a year.

And he drunk of dried berry tea,and to blooming her as leaves tea drunk three times/day before meal, in 2 months vision had better, as leaves alternated with berries within 5 years, and today as pensioner he  felt better, but on a war he got many damages. And a father lived till 90 years same drunk blueberry had fought hypertension .