What is the recommended daily intake of carbs for a 5 year old?

Depends . The answer depends on : are you asking me or some "expert" panel how much your child weighs is your child of normal weight? Overweight? Underweight? My recommendation -for each pound of body weight approximately 0.6 grams of carbs per day. Less if overwieght, more if underweight. How much do the "experts" recommend? Probably way too much.