Does Watermelon Really Raise Blood Sugar Levels? The Myth Explained
A common misconception is that watermelon causes a large spike in blood sugar because it tastes very sweet. Nutrition experts generally point out that the reality is more nuanced.
Why the Myth Exists
Watermelon has a relatively high glycemic index (GI), which measures how quickly a food’s carbohydrates can raise blood sugar. This often leads people to assume it’s unsuitable for those monitoring their glucose levels.
The Important Detail: Glycemic Load
While watermelon has a high GI, it also contains a large amount of water and relatively few carbohydrates per serving. Because of this, its glycemic load (GL)—which considers both the GI and the amount of carbohydrates consumed—is generally considered low to moderate.
For example, a typical serving of watermelon contains:
- About 90% water
- Relatively few calories
- Moderate amounts of natural sugars
- Vitamins A and C
- Antioxidants such as lycopene
What This Means for Blood Sugar
