Of course, a number of individual factors can also play a role in whether it's appropriate to exercise while fasting, such as your age, when you last ate, whether or not you're pregnant, taking medications, your medical history, level of fitness, and the type of workout you engage in.
Children should consume no more than 12 grams (92 calories) or 3 teaspoons of added sugar per day, according to the American Heart Association. Teens should consumer no more than 18-37 grams (138-285 calories) or 5 teaspoons of added sugar each day.
1 The amount of sugar eaten daily can vary based on activity level and overall health. 2  Be sure your physician is aware of any specific dietary modifications. 3  Women may reduce the daily sugar intake to 17 g per day and men can aim for 25 g per day.