Teenagers who consume a lot of added sugars in soft drinks and foods may have poor cholesterol profiles, which may possibly lead to heart disease in adulthood, according to first-of-its-kind research reported in Circulation: Journal of the American Heart Association.
“Added sugars” are any caloric sweeteners added to foods or beverages by the manufacturer during processing or the consumer.
The National Health and Nutrition Survey of 2,157 teenagers, ages 12 to 18, found the average daily consumption of added sugars was 119 grams (or 476 calories), accounting for 21.4 percent of their total energy.
The American Heart Association recently recommended a specific upper limit for added sugars intake, based on the number of calories an individual needs throughout the day, according to their energy expenditure, sex and age. For example, an appropriate amount for an individual with an energy requirement of 1,800 calories per day (an average teenage girl ages 14-18 might be in this calorie range) would be no more than 100 calories from added sugars. An individual with a requirement of 2,200 calories per day should eat or drink no more than 150 calories from added sugars.
Teens consuming the highest levels of added sugars had lower levels of high density lipoprotein levels (HDL), the good cholesterol, and higher levels of triglycerides and low density lipoproteins (LDL), the bad cholesterol.
“This is the first study to assess the association of added sugars and the indicators of heart disease risk in adolescents,” said Jean Welsh, MPH, PhD, R.N., study author and post-doctoral fellow at Emory University in Atlanta, Ga. “The higher consumers of added sugar have more unfavorable cholesterol levels. The concern is long-term exposure would place them at risk for heart disease later in adulthood.”
Previous studies indicate that the largest contributors of added sugars to the diet are sugary beverages such as sodas, fruit drinks, coffees and teas, Welsh said.
“Adolescents are eating 20 percent of their daily calories in sugars that provide few if any other nutrients,” she said. “Sweet things have lost their status as treats.”
The study included dietary recall from one 24-hour period that researchers merged with sugar content data from the U.S. Department of Agriculture My Pyramid Equivalents Databases. Researchers concluded:
• Those with higher intake of added sugar had higher LDL levels of 94.3 mg/dL compared to 86.7 in those with the lowest levels, a 9 percent difference.
• Triglyceride levels in those with the highest consumption were 79 mg/dL compared to 71.7 mg/dL among the lowest, a 10 percent difference.
• Overweight or obese adolescents with the highest level of added sugar consumption had increased signs of insulin resistance.
“While Americans appear to be working hard to lower their intake of saturated fats, there is not the same awareness when it comes to added sugars,” Welsh said. “The intake of added sugars is positively associated with known cardiovascular risk factors. Added sugars play a significant role in the U.S. diet, contributing substantially to energy intake without contributing important nutrients to the diet.”
Adolescents and adults should “use the labels of the drinks and food they consume to become familiar with the amount of sugar in them,” Welsh said. “Replacing sugar laden drinks with water is one way to substantially reduce sugar and calorie intake.”
Courtesy American Heart Association. www.heart.org