Abstract
Summary Objective Endurance athletes may benefit from consuming foods low in glycemic index (GI) before sport performance. Foods such as lentils and tart cherries have a very low GI, but processing these ingredients into products that can easily be consumed before performance may affect their GI. The study determined whether processing lentils into a sports nutrition bar and tart cherries into a drink affected the glycemic index. Methods Using a randomized counterbalanced design, we compared the GI of a lentil-based sports nutrition bar (n = 10) to two versions of a popular sports nutrition bar (i.e. Power Bar Harvest and Power Bar Recovery, n = 9) in young, healthy individuals. We then evaluated the GI of raw tart cherries and juice from tart cherries in another group of young healthy individuals (n = 7). Results The lentil-based sports nutrition bar had a lower GI than the other bars (i.e. 45 ± 17 versus 55 ± 13 and 55 ± 14 for the lentil bar, Power Bar Harvest and Power Bar Recovery, respectively; p 0.05). Conclusions A sports nutrition bar with lentils as a main ingredient or cherry juice offer low GI carbohydrate options for endurance athletes.
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