The carbohydrates found in plain, low-fat Greek yogurt are considered good carbs, according to East Jefferson General Hospital. Carbohydrates are considered good by being high-fiber complex carbohydrates that do not cause spikes in blood levels, rather than refined carbohydrates that take longer to digest.
Lactose, a natural milk sugar, is strained from Greek yogurt, resulting in its thick, custard-like texture and reduced carbohydrate count, explains U.S. News & World Report. When selecting a Greek yogurt, it is necessary to watch out for additional ingredients, such as honey or fruit filling, that may include refined sugars. Refined sugars are considered bad carbohydrates that increase the number of carbohydrates in Greek yogurt.