Question: how many carbs is in a white onion?
Answer: Carbohydrates make up about 9–10% of both raw and cooked onions. They consist mostly of simple sugars, such as glucose, fructose, and sucrose, as well as fiber. A 3.5-ounce (100-gram) portion contains 9.3 grams of carbs and 1.7 grams of fiber, so the total digestible carb content is 7.6 grams.