Is carrot juice good for diabetics?

Not really : Juices concentrate sugar. However vegetable juices are generally lower sugar than fruit juices. Much better from a healthy diet point of view to be eating the unprocessed forms of vegetables

Carrot juice: Use of Carrot juice in diabetes should be in moderation with regular blood sugar test. Carrot juice has antioxidants that may help auto immune system but sugar contents have to be monitored