Canada's Food Guide (2007) recommended 7-10 servings of fruits and vegetables per day for a normal adult population. Although fruit juice (125 ml) is considered as one serving of fruits, the consumption of some fruit juices may be limited due to their high amount of sugar. The consumption of sugary drinks can lead to a rapid rise in postprandial glycaemia. Wild blueberries, due to their high level of anthocyanins, may provide multiple health benefits including improved blood glucose control, however, the consumption of fresh berries is limited by their short seasonal availability. Hydro-Thermodynamic (HTD) processing of blueberries allows the processing of whole berries including their skin and seeds into a beverage with the amount of anthocyanins comparable with fresh berries. The objective of the study is to investigate the effect of HTD-processed blueberries on postprandial glycaemia and antioxidant activity.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
25
HTD-blueberry beverage with white bread.
Sweetened water with white bread as a control.
Mount Saint Vincent University
Halifax, Nova Scotia, Canada
Blood glucose
The concentration of glucose in venous blood after consuming HTD-blueberry beverage with white bread or water control with white bread.
Time frame: 0-120 min
Postprandial antioxidant activity in blood
The total antioxidant activity in blood plasma determined using a commercial Antioxidant Assay Kit.
Time frame: 0-120 min
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