a grain of truth? Let’s start by saying that watermelon, just like any other fruit, contains simple sugars, specifically fructose, glucose, and sucrose: after consuming it, blood sugar levels will inevitably tend to rise.
Does watermelon have a high glycemic index? “Yes, it’s true: watermelon has a high glycemic index, but—let me say once and for all—using the glycemic index as the sole criterion for evaluating whether a food is “good” or “bad” makes little sense, especially if taken alone, outside of the context of a meal,” Gabrielli points out.