This DIY cure is the best way with 2 items that means making your own cure in the kitchen.
300 g parsley
Wash first celery well and grate it. Put this in a pot, add the juice of lemons and cover the pot. Put this in another pot of boiling water. When this is done, reduce heat and simmer on low heat for 2 hours.
Remove pots from heat and do not open them yet until cool. Put the mixture in a jar and close it tight. Refrigerate.
Have 1 tbsp of this in the morning before you eat, half an hour prior breakfast. This will last for 2 months and you will also see improvement in the blood sugar.