“How many grams of sugar should a child with type 2 diabetes have?”

Anyone with Diabetes needs a full nutritional or dietary assessment focusing on all nutrient intake including foods, beverages, drugs and supplements being consumed; along with an assessment of biometrics, including an assessment of height, weight, blood test results, body composition, exercise, physical activity, and other co-morbidities.

This will be a hard answer for you to swallow as a parent. The answer is in a perfect world 0 carbs. If you can manage to keep a strict keto level diet (20-30g carbs daily) your child will lose weight and could very easily lose the diabetes II as well! I have personally done the keto diet while running track in college. I needed to not crash during 5 hr long workouts is the reason I did it. Sugar addiction is a beast. Good luck.

None, zero, nada.