It's an unusual phenomenon. People come to me for diabetes counseling and often tell me they have been avoiding carrots because they will raise their blood sugar.
Well there are lots of things that will raise your blood sugars: bread, potatoes, pasta, rice, cereals, grains, fruits, dairy and sweets. Yet carrots tend to get eliminated before most things time and time again.
Let's look at it in numbers:
1 cup of chopped carrot has about 12 grams of carbohydrate (the nutrient in our food that our body breaks down into sugar). Of those 12 grams of carbs, 4g are fibre (fibre is something the body can't turn into sugar) and 6g are sugar. The rest would be starches.
An average slice of whole wheat bread has about 12g of carbohydrate. Of those 2 grams are fibre and 2 grams are sugar. The rest would be starches.
As I said above, fibre is the one type of carbohydrate we don't break down into sugar. So if we subtract the fibre from both, that would leave 8g of carbohydrates in the cup of carrots and the slice of bread has 10g of carbs.
So carrots do not contain tons of sugar. They may contain more than some vegetables but not so much that they cannot be included in your diet.
They are a good source of fibre, vitamin A and quite frankly, they are tasty. You don't need to restrict them just because of high blood sugars. If you eat balanced reasonable portions, they can be just as much a part of a healthy diet as everything else.