I always here people saying " I heard it from someone" and I am still looking for that someone , but haven't been able to find him or her. Nevertheless you fathers sugar is way more than what it should. if he is already taking medications, which I am hoping he is, adding IME 9( which nobody knows what it is ) is unlikely to make much improvement in his sugar levels. Before it does start causing complications, get your dad properly treated by getting evaluated by an efficient diabetologist.