TORONTO, May 24, 2016 -- Artificial sweeteners help individuals with obesity to cut calories and lose weight but may have negative health effects, according to researchers at York University's Faculty of Health.
"Our study shows that individuals with obesity who consume artificial sweeteners, particularly aspartame, may have worse glucose management than those who don't take sugar substitutes," says Professor Jennifer Kuk, obesity researcher in the School of Kinesiology and Health Science.
Normally, weight loss is associated with several improvements in health. Artificial sweeteners are often used to help individuals cut calories and manage their weight as they are not digested by the body. However, the recent study suggests that the bacteria in the gut may be able to break down artificial sweeteners, resulting in negative health effects.
"We didn't find this adverse effect in those consuming saccharin or natural sugars," says Kuk. "We will need to do future studies to determine whether any potentially negative health effects of artificial sweeteners outweigh the benefits for obesity reduction."
Currently, there are many new sugar substitutes that are used in foods. The researchers note that further investigation is needed to determine if there are any health effects of using these sweeteners.
For the study, data from 2856 U.S. adults from the Third National Health and Nutrition Survey (NHANES III) was used. Individuals reported their diet over the past 24 hours and were categorized as consumers of artificial sweeteners (aspartame or saccharin), or high or low consumers of natural sugars (sugar or fructose). Diabetes risk was measured as the ability to manage blood sugars using an oral glucose tolerance test.
The Canadian Institutes of Health Research funded study, "Aspartame intake is associated with greater glucose intolerance in individuals with obesity," was published today in Applied Physiology, Nutrition and Metabolism.
York University is helping to shape the global thinkers and thinking that will define tomorrow. York's unwavering commitment to excellence reflects a rich diversity of perspectives and a strong sense of social responsibility that sets us apart. A York U degree empowers graduates to thrive in the world and achieve their life goals through a rigorous academic foundation balanced by real-world experiential education. As a globally recognized research centre, York is fully engaged in the critical discussions that lead to innovative solutions to the most pressing local and global social challenges. York's 11 faculties and 27 research centres are thinking bigger, broader and more globally, partnering with 288 leading universities worldwide. York's community is strong - 55,000 students, 7,000 faculty and staff, and more than 250,000 alumni.
Gloria Suhasini, York University Media Relations, 416 736 2100 ext. 22094, email@example.com
NOTE: York U media studio is available for double-ended broadcast interviews.