You carb load when you don't need to: carb-loading is an essential strategy for long endurance events, but it is generally not needed for events that last less than 90 minutes or that are performed at low intensity.
2. You consume too much fat: if you consume too much fat during carb-loading, you might further burden your digestive system and consume too many calories, which may result in unnecessary weight gain.
3. You consume too much fiber: if you consume too much fiber during carb-loading, you might find it hard to consume enough food and it might lead to digestive issues during the event.
4. You perform too many training sessions: if you perform training sessions during carb-loading, you will deplete your glycogen stores and increase the required caloric intake.
5. You fail to eat enough carbohydrates: to successfully carb load, you need to consume high amounts of carbohydrates, as seen above. If you fail to eat enough, you won't completely fill your glycogen stores.
6. You eat too many carbohydrates: it might seem difficult, but that's also an option. Consuming excessive amounts of food will only burden your digestive system without additionally filling your glycogen stores.
7. You are under stress: an upcoming event might cause stress, which affects glycogen synthesis.