Blueberries May Provide Blood Sugar Benefits
Prolonged elevated blood sugar can lead to insulin resistance. Elevated post meal blood sugar can also be a predictor of cardiovascular disease mortality and atherosclerosis in people without diabetes. According to a recent study, adding blueberries to a high fat/high sugar meal may provide post meal blood sugar benefits.
Forty-five adults with metabolic syndrome participated in the study. They consumed a high calorie, high fat, high sugar meal. Half of them also consumed 1 cup of blueberries with the meal, and the other half did not. The researchers evaluated insulin levels, glucose concentrations, and cholesterol levels before consumption of the meal and 30, 60, 90, 120, 180, 360 minutes and 24 hours after consumption.
Participants in the blueberry group saw significant improvements in insulin levels and glucose concentrations 3 hours after consumption compared to the control group. They also saw significant improvements in HDL cholesterol levels 90 minutes and 3 hours after consumption compared to the control group. Total cholesterol levels were significantly lower 24 hours after consumption compared to the control group.
The study was conducted by researchers from the University of East Anglia. It was published on January 1, 2022 in the journal Clinical Nutrition.