Some are, some are not. It all depends on what carrot does to your BG levels.
Even a few shreds of carrot in my salad sends my post prandial BG numbers over 200.
The best way to find out what a carrot does to you is to test BG, eat the carrot for snack time, after about 2 hours, test BG again!
I test all foods and recipes this way when I have to change meds! Different meds allow different foods.
Journal everything and you will see a definate pattern emerge.