This is possible if your usual diet is low in fibre. The pancake contains dietary fibre from oligofructose from chicory and isomaltooligosaccharides. A sudden increase in fibre can lead to bloating, gas, or a change in digestion. That is why the product information suggests introducing high-fibre foods sensibly when your menu is not used to that amount of fibre.
If you want to try it, start with a smaller portion, for example half the pancake, rather than the whole 40 g at once. Drink enough water during the day, since fibre needs adequate fluid to move through the digestive tract smoothly. You can keep it as an occasional snack instead of eating it daily, and you can adjust the timing to see whether eating it earlier in the day works better for you.
Sweeteners can also cause digestive discomfort in some people. If you notice symptoms, it may be the combined effect of the fibre and sweeteners rather than one ingredient alone. If bloating persists or you have an existing digestive condition, speak with a specialist about whether this type of snack is appropriate for you.