Final answer:
Consuming sugary foods before exercise can lead to fluctuations in blood glucose levels and affect performance.
Step-by-step explanation:
Consuming sugary foods right before exercise is generally not recommended. This is because sugary foods increase blood glucose levels, and exercise reduces insulin levels. Insulin is a hormone that helps to regulate blood glucose levels. When insulin levels are reduced during exercise, the body may not have enough glucose in the blood, which can lead to low energy levels and affect performance. Additionally, consuming sugary foods before exercise can lead to a spike in blood glucose levels, followed by a crash, causing fluctuations in energy and affecting overall performance.
Learn more about Effect of sugary foods on exercise performance