It should come as no surprise that “added sugar” may contribute to early death from complications of cardiovascular disease, obesity, Type 2 diabetes, increased cholesterol, or high blood pressure. Sugar increases insulin hormone and increased heart rate and blood pressure. Sugar also promotes blood vessel constriction that elevates blood pressure. To make this situation even worse, man-made fructose corn syrup found in beverages and foods cause insulin resistance and increases hunger levels. Foods such as sweetened granola, yogurts, milk, and tomato sauce are loaded with added sugars. Look carefully at your food labels.
“extrinsic or added sugar refers to sucrose or other refined sugars in soft drinks and incorporated into food, fruit drinks, and other beverages.”
http://www.circ.ahajournals.org/content/106/4/523.full
A prudent upper limit of intake is half of the discretionary calorie allowance, which for most American women is no more than 100
calories per day and for most American men is no more than 150 calories per day from added sugars