Changes in glucose curve from different foods

The figure shows how blood sugar levels change after eating different types of food.

Severe increase in blood sugar levels ("strong rise in blood sugar")

A rapid and high rise in blood sugar occurs, followed by a sudden drop (low blood sugar - "Unter-Zuckerung").

This is most common when consuming rapidly absorbed carbohydrates (e.g. sugary foods).

Moderate blood sugar increase ("mittlerer Blutzuckeranstieg")

It shows a less intense, more moderate rise and slower fall, which is typical of foods containing more complex, slower-absorbing carbohydrates.

Slight increase in blood sugar ("geringer Blutzuckeranstieg"):

Carbohydrates consumed with protein and fat result in the most stable blood sugar levels, as protein and fat slow down the absorption of carbohydrates.

The gist of the diagram

The slower a food is absorbed, the more balanced and stable blood sugar levels become, thus avoiding sudden spikes and drops.