High-Glycemic-Index Foods Turn on Brain Regions Linked to Overeating
High-glycemic-index foods, like white bread and children’s cereals, stimulate brain regions associated with reward and cravings and increase the drive to eat. In a report in the latest American Journal of Clinical Nutrition, researchers at Boston’s Children’s Hospital fed high-GI and low-GI meals to 12 young men and then tracked the activity of various brain regions. The high-GI meal turned on the brain regions involved in reward, craving, and hunger.
Lennerz BS, Alsop DC, Holsen LM, et al. Effects of dietary glycemic index on brain regions related to reward and craving in men. Am J Clin Nutr. 2013;98:641-647.
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