Many people do not know how important the proportions of pre-workout meals are.

The food should not lie on the stomach. Therefore, we should then have zero fats.

high above
About 10-20g of carbohydrates from fruit.

A good pre-workout meal:
30g Protein.
0-4g Fat, 80g Carbohydrates

After training: 60g Protein, 0-4g Fat, 120g Carbohydrates.

There can not be a large amount of fiber at this point, because the training will be weaker. And thus malaise, and lack of full strength.
Weaker progress..

Good product options:
Semolina, Rice gruel, Corn flakes, Low-fat wafers
Protein: Isolate 90-100% (low fat!)