A benefit of preparing your own agua fresca is that the type and amount of sweetener can be controlled, Linares said. It's wise to consider the total sugar content being consumed in one's overall diet, she said. A high intake of food and beverages with added sugar can contribute to a higher risk of high blood pressure, Type 2 diabetes, coronary heart disease and obesity, studies show. The American Heart Association recommends limiting added sugar to 6 teaspoons (25 grams) daily for most women and children over 2, and 9 teaspoons (36 grams) per day for most men.