Sweet and hydrating, grapes are rich in resveratrol and antioxidants that support heart health, protect cells from oxidative stress, and provide quick natural energy.
Tells you how big that rise actually is once portion size is factored in.
Example:
Watermelon has a high GI (it digests quickly) but a low GL because a normal serving doesn’t contain many carbs so the actual blood-sugar impact is small.
Why it matters:
Understanding both GI and GL gives you a clearer picture of how foods affect your blood sugar both the speed of the rise and the true impact based on the portion you eat.